Table of Dates Relating to the Build up and Retreat of the Last British-Irish Ice Sheet

Dates relating to the build up and retreat of the last British -Irish Ice Sheet. Version 2.0. Census date: 1 May 2012.

Table of dates relating to the build up and retreat of the last British-Irish Ice Sheet. Version 2.0. Compiled from existing literature with a census date of 1 May 2012. Full description of compilation and database given in Hughes, A.L.C., Greenwood, S.L., Clark, C.D. 2011. Dating constraints on the last British-Irish Ice Sheet: a map and database. Journal of Maps, v2011, 156-183.

This is version 2 of the database and is an update to that released in the Journal of Maps paper above. Periodic updates will be released via the BRITICE web pages roughly every two calendar years. Please contact authors for updated information. *Unplotted due to incorrect location information given in source # Grid references for all Woodman et al. (1997) sites (except Edenvale and Killuragh) taken from Hedges et al. (1997a,b: laboratory dates lists for the Woodman et al. samples) since those reported in the Woodman paper give a poor match to the site locations shown on the map figure. § Radiocarbon ages calibrated using Calib v. 6.0. Age corresponds to mid point of the range. Where more than one range is given the mid point of the range with the highest probability is taken. + Errors for calibrated radiocarbon dates are based on half the range (see §). **This entry supercedes that published in v1.0, which was based on preliminary publication. ## Unplotted as no location information given in source. NB. For all CN-dates, please refer to source publication for data parameters and scaling information. Irish British Calibration curve Irish British 14 C age Calibrated §/ Calibrated +/ Site Laboratory Sample/site Longitude Longitude National National Dating 14 C uncorrected (NB. no DeltaR Ice sheet Site name Latitude °N National National Dated Material Stratigraphic position/setting Elevation uncorrected calendar age (yr calendar error Comment Source Reference Citation No. code code °W °E Grid Grid Technique error +/- (yr) applied on MARINE context Grid Easting Grid Easting (yr BP) BP) +/- (yr) Northing Northing samples) Exposure time Date cited here follows source best estimate of post- 1 - Table1-11 Sheep's Head Peninsula 51.620 9.580 - 90586 41999 - - - 152 CN 36 Cl - - - 21300 1300 Bowen et al. 2002 (cumulative) exposure erosion. 2 OxL-1772 BS-1 Broadstrand 51.622 8.695 - 151900 41300 - - Sand Raised beach sand/gravel underlies till - OSL - - - 77300 11800 Advance Small aliquot Ó Cofaigh et al. 2012 2 OxL-1773 BS-2 Broadstrand 51.622 8.695 - 151900 41300 - - Sand Raised beach sand/gravel underlies till - OSL - - - 66200 15400 Advance Small aliquot Ó Cofaigh et al. 2012 2 OxL-1774 BS-3 Broadstrand 51.622 8.695 - 151900 41300 - - Sand Raised beach sand/gravel underlies till - OSL - - - 63400 15800 Advance Small aliquot Ó Cofaigh et al. 2012 2 OxL-1775 BS-4 Broadstrand 51.622 8.695 - 151900 41300 - - Sand Raised beach sand/gravel underlies till - OSL - - - 68500 13800 Advance Small aliquot Ó Cofaigh et al. 2012 3 OxL-1767 HS-1 Howes Strand 51.634 8.639 - 155800 42600 - - Sand Raised beach sands underlie glacigenic debris flow - OSL - - - 56700 12200 Advance Small aliquot Ó Cofaigh et al. 2012 3 OxL-1768 HS-2 Howes Strand 51.634 8.639 - 155800 42600 - - Sand Raised beach sands underlie glacigenic debris flow - OSL - - - 56700 9800 Advance Small aliquot Ó Cofaigh et al. 2012 3 OxL-1769 HS-3 Howes Strand 51.634 8.639 - 155800 42600 - - Sand Raised beach sands underlie glacigenic debris flow - OSL - - - 61200 9500 Advance Small aliquot Ó Cofaigh et al. 2012 3 OxL-1770 HS-4 Howes Strand 51.634 8.639 - 155800 42600 - - Sand Raised beach sands underlie glacigenic debris flow - OSL - - - 59800 12200 Advance Small aliquot Ó Cofaigh et al. 2012 3 OxL-1771 HS-5 Howes Strand 51.634 8.639 - 155800 42600 - - Sand Raised beach sands underlie glacigenic debris flow - OSL - - - 53100 7400 Advance Small aliquot Ó Cofaigh et al. 2012 4 OxL-1761 CMS-1 Courtmacsherry Bay 51.639 8.611 - 157700 43100 - - Sand Raised beach sand/gravel underlies till - OSL - - - 62500 16300 Advance Small aliquot Ó Cofaigh et al. 2012 4 OxL-1761 CMS-1 Courtmacsherry Bay 51.639 8.611 - 157700 43100 - - Sand Raised beach sand/gravel underlies till - OSL - - - 45100 9000 Advance Single grain Ó Cofaigh et al. 2012 4 OxL-1762 CMS-2 Courtmacsherry Bay 51.639 8.611 - 157700 43100 - - Sand Raised beach sand/gravel underlies till - OSL - - - 44000 7600 Advance Small aliquot Ó Cofaigh et al. 2012 4 OxL-1762 CMS-2 Courtmacsherry Bay 51.639 8.611 - 157700 43100 - - Sand Raised beach sand/gravel underlies till - OSL - - - 100800 17400 Advance Single grain Ó Cofaigh et al. 2012 4 OxL-1763 CMS-3 Courtmacsherry Bay 51.639 8.611 - 157700 43100 - - Sand Raised beach sand/gravel underlies till - OSL - - - 36100 7900 Advance Small aliquot Ó Cofaigh et al. 2012 4 OxL-1764 CMS-4 Courtmacsherry Bay 51.639 8.611 - 157700 43100 - - Sand Raised beach sand/gravel underlies till - OSL - - - 59600 9600 Advance Single grain Ó Cofaigh et al. 2012 4 OxL-1764 CMS-4 Courtmacsherry Bay 51.639 8.611 - 157700 43100 - - Sand Raised beach sand/gravel underlies till - OSL - - - 67100 11900 Advance Small aliquot Ó Cofaigh et al. 2012 4 OxL-1764 CMS-4 Courtmacsherry Bay 51.639 8.611 - 157700 43100 - - Sand Raised beach sand/gravel underlies till - OSL - - - 71500 11800 Advance Single grain Ó Cofaigh et al. 2012 4 OxL-1765 CMS-5 Courtmacsherry Bay 51.639 8.611 - 157700 43100 - - Sand Raised beach sand/gravel underlies till - OSL - - - 54800 11000 Advance Small aliquot Ó Cofaigh et al. 2012 4 OxL-1766 CMS-6 Courtmacsherry Bay 51.639 8.611 - 157700 43100 - - Sand Raised beach sand/gravel underlies till - OSL - - - 70800 13200 Advance Small aliquot Ó Cofaigh et al. 2012 Exposure time Date cited here follows source best estimate of post- 5 - Table1-10 Carrigacapeen 51.817 9.504 - 96300 63803 - - - 30 CN 36 Cl - - - 22000 3400 Bowen et al. 2002 (cumulative) exposure erosion. Exposure time Date cited here follows source best estimate of post- 6 - Table1-0 Kerry Head 51.820 9.500 - 96583 64131 - - - 36 CN 36 Cl - - - 181000 29000 Bowen et al. 2002 (cumulative) exposure erosion. Possible location error. 7 OxA-4270 - Garransdarragh Bog, Co. Cork # 51.867 8.517 - 164420 68375 - - Bone Skull within 'lateglacial sediments' - 14 C AMS 11820 120 INTCAL09 13673 113 Ice free Giant deer Woodman et al.1997 8 OxL-1786 BCS-1 Ballycroneen Strand 51.806 8.131 - 191000 61500 - - Sand Glaciofluvial/lacustrine sands/silts/clays overlie 'Irish Sea till' and underlie inland till - OSL - - - 30500 2700 Retreat; Advance Small aliquot; location approximate Ó Cofaigh et al. 2012

8 OxL-1787 BCS-2 Ballycroneen Strand 51.806 8.131 - 191000 61500 - - Sand Glaciofluvial/lacustrine sands/silts/clays overlie 'Irish Sea till' and underlie inland till - OSL - - - 23800 2100 Retreat; Advance Small aliquot; location approximate Ó Cofaigh et al. 2012

8 OxL-1788 BCS-3 Ballycroneen Strand 51.806 8.131 - 191000 61500 - - Sand Glaciofluvial/lacustrine sands/silts/clays overlie 'Irish Sea till' and underlie inland till - OSL - - - 21600 2100 Retreat; Advance Small aliquot; location approximate Ó Cofaigh et al. 2012

Outside calibration Outside Ó Cofaigh and Evans 9 Poz-15807 - Garryvoe, Ballycotton Bay, Co. Cork 51.861 7.994 - 200413 67628 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 48000 3000 MARINE09 Unclassified range calibration range 2007 Ó Cofaigh and Evans 9 Beta-215778 - Garryvoe, Ballycotton Bay, Co. Cork 51.861 7.994 - 200413 67628 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 22600 90 MARINE09 26695 145 Advance 2007 Ó Cofaigh and Evans 9 Beta-215779 - Garryvoe, Ballycotton Bay, Co. Cork 51.861 7.994 - 200413 67628 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 42370 900 MARINE09 45318 646 Advance 2007 Ó Cofaigh and Evans 9 Beta-222308 - Garryvoe, Ballycotton Bay, Co. Cork 51.861 7.994 - 200413 67628 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 27250 190 MARINE09 31236 104 Advance 2007 Ó Cofaigh and Evans 9 Beta-222309 - Garryvoe, Ballycotton Bay, Co. Cork 51.861 7.994 - 200413 67628 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 43050 830 MARINE09 45787 671 Advance 2007 No error range No error range provided so Ó Cofaigh and Evans 9 Beta-222310 - Garryvoe, Ballycotton Bay, Co. Cork 51.861 7.994 - 200413 67628 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS >50525 0 - provided so unable Unclassified unable to 2007 to calibrate calibrate Bulk age calculated from 11 samples; contaminated 10 - - Kilfenora, Co. Kerry 52.267 9.817 - 76630 114960 - - Peat Organics interdigitate with raised beach, overlain by 'head' diamict - 14 C AMS - - - 118000 5000 Ice free Heijnis et al.1993 samples discarded but not clear which these are.

11 OxA-5743 - Killavullen Cave, Co. Cork # 52.150 9.500 - 97340 100840 - - Bone Cave - 14 C AMS 10680 110 INTCAL09 12613 87 Ice free Stoat Woodman et al.1997 12 OxA-3602 - Castlepook Cave, Co. Cork # 52.217 8.583 - 160140 107350 - - Antler Cave - 14 C AMS 12480 130 INTCAL09 14677 218 Ice free Reindeer Woodman et al.1997 12 OxA-3603 - Castlepook Cave, Co. Cork 52.217 8.583 - 160140 107350 - - Bone Cave - 14 C AMS 32060 630 INTCAL09 36782 604 Ice free Giant deer Woodman et al.1997 12 OxA-3604 - Castlepook Cave, Co. Cork 52.217 8.583 - 160140 107350 - - Bone Cave - 14 C AMS 19950 250 INTCAL09 23849 324 Ice free Arctic fox Woodman et al.1997 12 OxA-3605 - Castlepook Cave, Co. Cork 52.217 8.583 - 160140 107350 - - Bone Cave - 14 C AMS 27930 390 INTCAL09 32104 508 Ice free Norwegian lemming Woodman et al.1997 12 OxA-3606 - Castlepook Cave, Co. Cork 52.217 8.583 - 160140 107350 - - Bone Cave - 14 C AMS 20300 210 INTCAL09 24198 261 Ice free Arctic lemming Woodman et al.1997 12 OxA-4230 - Castlepook Cave, Co. Cork 52.217 8.583 - 160140 107350 - - Bone Cave - 14 C AMS 38650 1400 INTCAL09 43076 1013 Ice free Reindeer Woodman et al.1997 12 OxA-4231 - Castlepook Cave, Co. Cork 52.217 8.583 - 160140 107350 - - Bone Cave - 14 C AMS 33310 770 INTCAL09 37889 905 Ice free Brown bear Woodman et al.1997 12 OxA-4232 - Castlepook Cave, Co. Cork 52.217 8.583 - 160140 107350 - - Bone Cave - 14 C AMS 23470 300 INTCAL09 28248 297 Ice free Wolf Woodman et al.1997 12 OxA-4233 - Castlepook Cave, Co. Cork 52.217 8.583 - 160140 107350 - - Bone Cave - 14 C AMS 20360 220 INTCAL09 24231 288 Ice free Mammoth Woodman et al.1997 12 OxA-4234 - Castlepook Cave, Co. Cork 52.217 8.583 - 160140 107350 - - Bone Cave - 14 C AMS 24000 300 INTCAL09 28878 352 Ice free Hyaena Woodman et al.1997 12 OxA-4235 - Castlepook Cave, Co. Cork 52.217 8.583 - 160140 107350 - - Bone Cave - 14 C AMS 34100 840 INTCAL09 39105 1132 Ice free Mammoth Woodman et al.1997 12 OxA-4236 - Castlepook Cave, Co. Cork 52.217 8.583 - 160140 107350 - - Bone Cave - 14 C AMS 35200 950 INTCAL09 40197 996 Ice free Reindeer Woodman et al.1997 No error range No error range provided so 12 OxA-4237 - Castlepook Cave, Co. Cork 52.217 8.583 - 160140 107350 - - Bone Cave - 14 C AMS >45000 - INTCAL09 provided so unable Unclassified Hyaena Woodman et al.1997 unable to to calibrate calibrate 12 OxA-4238 - Castlepook Cave, Co. Cork 52.217 8.583 - 160140 107350 - - Bone Cave - 14 C AMS 37870 1270 INTCAL09 42451 955 Ice free Brown bear Woodman et al.1997 12 OxA-5739 - Castlepook Cave, Co. Cork 52.217 8.583 - 160140 107350 - - Bone Cave - 14 C AMS 32200 1600 INTCAL09 36862 1729 Ice free Giant deer Woodman et al.1997 12 OxA-5740 - Castlepook Cave, Co. Cork 52.217 8.583 - 160140 107350 - - Bone Cave - 14 C AMS 37200 2000 INTCAL09 41847 1780 Ice free Giant deer Woodman et al.1997

13 D-122 - Castlepook Cave, Co. Cork 52.233 8.567 - 161293 109200 - - Bone Cave 100 14 C conventional 33500 1200 INTCAL09 38131 1404 Ice free Details from Dresser and McAulay (1974) Mitchell 1976

14 OxA-3722 - Foley Cave, Co. Cork # 52.167 8.417 - 171495 101710 - - Tooth Cave - 14 C AMS 26340 320 INTCAL09 30970 224 Ice free Brown bear Woodman et al. 1997 14 OxA-3705 - Foley Cave, Co. Cork 52.167 8.417 - 171495 101710 - - Tooth Cave - 14 C AMS 28000 370 INTCAL09 32176 506 Ice free Reindeer Woodman et al. 1997 Ó Cofaigh and Evans 15 Beta-222314 - Whiting Bay, Co. Waterford 51.949 7.791 - 214369 77439 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 36570 420 MARINE09 41326 359 Advance 2007 No error range No error range provided so Ó Cofaigh and Evans 15 Beta-215777 - Whiting Bay, Co. Waterford 51.949 7.791 - 214369 77439 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS >46105 0 MARINE09 provided so unable Unclassified unable to 2007 to calibrate calibrate No error range No error range provided so Ó Cofaigh and Evans 16 Beta- 215775 - Whiting Bay, Co. Waterford 51.949 7.766 - 216087 77444 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS >45605 0 MARINE09 provided so unable Unclassified unable to 2007 to calibrate calibrate Ó Cofaigh et al. in press 16 OxL-1784 WB-1 Whiting Bay 51.949 7.767 - 216100 77450 - - Sand Glaciofluvial/lacustrine sand/gravel overlies 'Irish Sea till' and underlies inland till - OSL - - - 24400 1800 Retreat; Advance Small aliquot; location approximate 2010 Ó Cofaigh et al. in press 16 Oxl-1785 WB-2 Whiting Bay 51.949 7.767 - 216100 77450 - - Sand Glaciofluvial/lacustrine sand/gravel overlies 'Irish Sea till' and underlies inland till - OSL - - - 24200 2300 Retreat; Advance Small aliquot; location approximate 2010 Ó Cofaigh and Evans 17 Beta-215776 - Whiting Bay, Co. Waterford 51.973 7.766 - 216079 80114 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 39110 600 MARINE09 42994 484 Advance 2007 Ó Cofaigh and Evans 17 Beta-222306 - Whiting Bay, Co. Waterford 51.973 7.766 - 216079 80114 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 23550 150 MARINE09 27987 208 Advance 2007 Ó Cofaigh and Evans 17 Beta-222307 - Whiting Bay, Co. Waterford 51.973 7.766 - 216079 80114 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 41650 640 MARINE09 44867 458 Advance 2007 Ó Cofaigh and Evans 18 Beta-215770 - Ardmore Bay, Co. Waterford 51.973 7.698 - 220751 80132 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 33270 290 MARINE09 37373 527 Advance 2007 Ó Cofaigh and Evans 18 Beta-215771 - Ardmore Bay, Co. Waterford 51.973 7.698 - 220751 80132 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 20710 70 MARINE09 24247 161 Advance 2007 Ó Cofaigh and Evans 18 Beta-215772 - Ardmore Bay, Co. Waterford 51.973 7.698 - 220751 80132 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 21300 80 MARINE09 24900 174 Advance 2007 Ó Cofaigh and Evans 18 Beta-215773 - Ardmore Bay, Co. Waterford 51.973 7.698 - 220751 80132 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 26020 130 MARINE09 30442 144 Advance 2007 No error range No error range provided so Ó Cofaigh and Evans 18 Beta-215774 - Ardmore Bay, Co. Waterford 51.973 7.698 - 220751 80132 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS >44205 0 MARINE09 provided so unable Unclassified unable to 2007 to calibrate calibrate

Page 1 of 19 Dates relating to the build up and retreat of the last British -Irish Ice Sheet. Version 2.0. Census date: 1 May 2012.

Irish British Calibration curve Irish British 14 C age Calibrated §/ Calibrated +/ Site Laboratory Sample/site Longitude Longitude National National Dating 14 C uncorrected (NB. no DeltaR Ice sheet Site name Latitude °N National National Dated Material Stratigraphic position/setting Elevation uncorrected calendar age (yr calendar error Comment Source Reference Citation No. code code °W °E Grid Grid Technique error +/- (yr) applied on MARINE context Grid Easting Grid Easting (yr BP) BP) +/- (yr) Northing Northing samples) Ó Cofaigh and Evans 18 Poz-15804 - Ardmore Bay, Co. Waterford 51.973 7.698 - 220751 80132 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 40200 1200 MARINE09 43796 861 Advance 2007 Ó Cofaigh and Evans 18 Beta-222302 - Ardmore Bay, Co. Waterford 51.973 7.698 - 220751 80132 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 24360 150 MARINE09 28786 265 Advance 2007 Ó Cofaigh and Evans 18 Beta-222303 - Ardmore Bay, Co. Waterford 51.973 7.698 - 220751 80132 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 23080 140 MARINE09 27196 172 Advance 2007 Ó Cofaigh and Evans 18 Beta-222304 - Ardmore Bay, Co. Waterford 51.973 7.698 - 220751 80132 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 21660 130 MARINE09 25362 246 Advance 2007 Ó Cofaigh and Evans 18 Beta-222305 - Ardmore Bay, Co. Waterford 51.973 7.698 - 220751 80132 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 20820 120 MARINE09 24335 193 Advance 2007 19 OxA-4239 - Kilgreany Cave, Co. Waterford # 52.083 7.733 - 218280 92395 - - Bone Cave - 14 C AMS 10360 120 INTCAL09 12214 206 Ice free Arctic lemming Woodman et al. 1997 19 OxA-4240 - Kilgreany Cave, Co. Waterford 52.083 7.733 - 218280 92395 - - Bone Cave - 14 C AMS 10990 120 INTCAL09 12846 127 Ice free Reindeer Woodman et al. 1997 19 OxA-4241 - Kilgreany Cave, Co. Waterford 52.083 7.733 - 218280 92395 - - Bone Cave - 14 C AMS 10960 110 INTCAL09 12818 137 Ice free Giant deer Woodman et al. 1997 20 OxA-4249 - Ballynamintra Cave, Co. Waterford # 52.100 7.717 - 219415 94255 - - Bone Cave - 14 C AMS 11110 110 INTCAL09 12995 138 Ice free Giant deer Woodman et al. 1997 20 OxA-4252 - Ballynamintra Cave, Co. Waterford 52.100 7.717 - 219415 94255 - - Bone Cave - 14 C AMS 35570 1100 INTCAL09 40520 1095 Ice free Brown bear Woodman et al. 1997 20 OxA-4253 - Ballynamintra Cave, Co. Waterford 52.100 7.717 - 219415 94255 - - Bone Cave - 14 C AMS 33630 790 INTCAL09 38240 1039 Ice free Reindeer Woodman et al. 1997 20 OxA-4366 - Ballynamintra Cave, Co. Waterford 52.100 7.717 - 219415 94255 - - Tooth Cave - 14 C AMS 27730 380 INTCAL09 31895 459 Ice free Red deer Woodman et al. 1997 21 OxA-3607 - Shandon Cave, Co. Waterford # 52.100 7.633 - 225125 94280 - - Tooth Cave - 14 C AMS 27150 350 INTCAL09 31382 220 Ice free Mammoth Woodman et al. 1997 21 OxA-3608 - Shandon Cave, Co. Waterford 52.100 7.633 - 225125 94280 - - Bone Cave - 14 C AMS 26090 320 INTCAL09 30813 245 Ice free Red deer Woodman et al. 1997 21 OxA-4243 - Shandon Cave, Co. Waterford 52.100 7.633 - 225125 94280 - - Bone Cave - 14 C AMS 30840 550 INTCAL09 35225 381 Ice free Reindeer Woodman et al. 1997 21 OxA-4244 - Shandon Cave, Co. Waterford 52.100 7.633 - 225125 94280 - - Bone Cave - 14 C AMS 27630 400 INTCAL09 31803 449 Ice free Horse Woodman et al. 1997 21 OxA-4245 - Shandon Cave, Co. Waterford 52.100 7.633 - 225125 94280 - - Bone Cave - 14 C AMS 32430 670 INTCAL09 37213 848 Ice free Brown bear Woodman et al. 1997 21 OxA-4246 - Shandon Cave, Co. Waterford 52.100 7.633 - 225125 94280 - - Bone Cave - 14 C AMS 27500 420 INTCAL09 31693 423 Ice free Wolf Woodman et al. 1997 21 OxA-4247 - Shandon Cave, Co. Waterford 52.100 7.633 - 225125 94280 - - Bone Cave - 14 C AMS 30900 540 INTCAL09 35269 361 Ice free Goose Woodman et al. 1997 21 OxA-4248 - Shandon Cave, Co. Waterford 52.100 7.633 - 225125 94280 - - Bone Cave - 14 C AMS 29980 560 INTCAL09 34483 615 Ice free Arctic fox Woodman et al. 1997 21 OxA-4365 - Shandon Cave, Co. Waterford 52.100 7.633 - 225125 94280 - - Bone Cave - 14 C AMS 28240 400 INTCAL09 32484 567 Ice free Hare Woodman et al. 1997 No error range No error range provided so 22 Birm-89 - Newtown, Co. Waterford 52.133 7.033 - 226185 98365 - - Wood Peat in silt underlies 'Ballyvoyle till' - 14 C 38000 0 INTCAL09 provided so unable Unclassified Shotton et al. 1969 unable to to calibrate calibrate 23 D-110 - Belle Lake, Co. Wexford 52.183 7.033 - 266168 103889 - - Gyttja Deepest sample from basin; overlies sands, clays and clayey till 33 14 C 12235 260 INTCAL09 14234 418 Retreat Craig 1978 Exposure time Date cited here follows source best estimate of post- 24 - Table1-2 Rathpatrick Cross 52.283 7.067 - 263665 114989 - - - 75 CN 36 Cl - - - 36500 3600 Bowen et al. 2002 (cumulative) exposure erosion. Gallagher and Thorp 25 - FOSL2 Fethard 52.203 6.824 - 280400 106300 - - Sand Raised beach underlies 'head' and till - IRSL - - - 161785 18462 Ice free 1997 Gallagher and Thorp 25 - FOSL4 Fethard 52.203 6.824 - 280400 106300 - - Sand Raised beach underlies 'head' and till - IRSL - - - 128610 16795 Ice free 1997 Ó Cofaigh and Evans 26 Poz-15803 - Kilmore Quay, Co. Wexford 52.167 6.600 - 295779 102597 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 30330 350 MARINE09 34699 271 Advance 2007 Ó Cofaigh and Evans 26 Beta-222311 - Kilmore Quay, Co. Wexford 52.167 6.600 - 295779 102597 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 37130 440 MARINE09 41688 327 Advance 2007 Ó Cofaigh and Evans 26 Beta-222312 - Kilmore Quay, Co. Wexford 52.167 6.600 - 295779 102597 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 44110 1100 MARINE09 46900 1177 Advance 2007 Outside calibration Outside Ó Cofaigh and Evans 26 Beta-222313 - Kilmore Quay, Co. Wexford 52.167 6.600 - 295779 102597 - - Shell fragment Within shelly diamict, 'Irish Sea till' - 14 C AMS 47700 1600 MARINE09 Unclassified range calibration range 2007 Deepest sample from basin, overlying sands, clays and clayey till: i.e. bottoms in glacigenic 27 D-109 - Coolteen, Co. Wexford 52.350 6.600 - 295448 122917 - - Gyttja 50 14 C 12470 155 INTCAL09 14560 335 Retreat Craig 1978 material Exposure time Date cited here follows source best estimate of post- 28 - Table1-7 Hatton Farm 52.430 7.120 - 259849 131299 - - - 245 CN 36 Cl - - - 23600 2800 Bowen et al. 2002 (cumulative) exposure erosion. Possible location error. Deepest sample from bog, overlies silty clay lake sediments: i.e. no explicit indictaion of 29 CAMS-2193 - Red Bog 52.517 8.533 - 163800 140700 - - Seed 247 14 C AMS 11880 80 INTCAL09 13733 104 Ice free Ahlberg et al. 1996 earlier ice cover 30 OxA-3704 - Red Cellar Cave, Co. Limerick # 52.517 8.517 - 164935 140695 - - Bone Cave - 14 C AMS 10650 100 INTCAL09 12595 72 Ice free Brown bear Woodman et al. 1997 31 OxA-4605 - Killuragh Cave, Co. Limerick # 52.590 8.322 - 178200 148800 - - Bone Cave - 14 C AMS 11510 100 INTCAL09 13359 96 Ice free Giant deer Woodman et al. 1997 Exposure time Date cited here follows source best estimate of post- 32 - Table1-13 Loop Head 52.630 9.750 - 81524 154627 - - - 120 CN 36 Cl - - - 20300 1800 Bowen et al. 2002 (cumulative) exposure erosion. Exposure time Date cited here follows source best estimate of post- 33 - Table1-21 Kilkee 52.675 9.670 - 87056 159505 - - - 66 CN 36 Cl - - - 15300 1000 Bowen et al. 2002 (cumulative) exposure erosion. 34 OxA-3701 - Edenvale Cave Complex, Co. Clare # 52.813 9.025 - 131000 174000 - - Bone Cave - 14 C AMS 10850 80 INTCAL09 12719 95 Ice free Reindeer Woodman et al. 1997 34 OxA-3723 - Edenvale Cave Complex, Co. Clare 52.813 9.025 - 131000 174000 - - Bone Cave - 14 C AMS 11750 90 INTCAL09 13595 116 Ice free Giant deer Woodman et al. 1997 34 OxA-3702 - Edenvale Cave Complex, Co. Clare 52.813 9.025 - 131000 174000 - - Bone Cave - 14 C AMS 10000 80 INTCAL09 11466 156 Ice free Arctic lemming Woodman et al. 1997

Uncorrected age includes a 1575 14 C year hardwater 35 AA56896 LINC-1 Lough Inchiquin 52.951 9.079 - 127750 189570 - - Bulk macrofossil Base of core bottomed in till 25 14 C AMS 13470 90 INTCAL09 16652 153 Retreat correction, applied by original authors. They suggest the Diefendorf et al. 2006 date may still be artifically old. 36 - - Poulsallagh Bay 53.057 9.365 - 108500 201600 - - Flowstone Flowstone stratigraphically below till - U-Th - - - 53000 0 Advance Simms 2005 36 - - Poulsallagh Bay 53.057 9.365 - 108500 201600 - - Flowstone Flowstone stratigraphically between two tills - U-Th - - - 38000 0 Retreat; Advance Simms 2005 Exposure time Date cited here follows source best estimate of post- 37 - Table1-12 Cornarone 53.230 9.450 - 103182 220935 - - - 30 CN 36 Cl - - - 20900 2700 Bowen et al. 2002 (cumulative) exposure erosion. Exposure time Date cited here follows source best estimate of post- 38 - Table1-1 St Molan's Cave 52.867 7.117 - 259458 179925 - - - 244 CN 36 Cl - - - 37500 1500 Bowen et al. 2002 (cumulative) exposure erosion. Possible location error. Exposure time Date cited here follows source best estimate of post- 39 - Table1-8 Mottee Stone 52.880 6.200 - 321165 182524 - - - 250 CN 36 Cl - - - 22300 2000 Bowen et al. 2002 (cumulative) exposure erosion.

40 Birm. 320 - Lough Nahanagan 53.030 6.390 - 308000 198800 - - Organics Organic lake material in moraine ridge - 14 C 11500 550 INTCAL09 13338 637 Margin Younger Dryas Colhoun and Synge 1980

40 Birm. 321 - Lough Nahanagan 53.030 6.390 - 308000 198800 - - Organics Organic lake material in moraine ridge - 14 C 11600 260 INTCAL09 13491 253 Margin Younger Dryas Colhoun and Synge 1980 Exposure time Date cited here follows source best estimate of post- 41 - Table1-17 Lough Nahanagan 53.040 6.380 - 308647 200038 - - - 450 CN 36 Cl - - - 17100 900 Bowen et al. 2002 (cumulative) exposure erosion.

42 - SCA-01 Scarr, Wicklow Mtns 53.053 6.309 - 313400 201600 - - Bedrock Bedrock (schist) outcrop below glacial erosion limit 600 CN 10 Be - - - 18500 1200 Retreat Quartz vein Ballantyne et al. 2006

43 - KAN-01 Kanturk, Wicklow Mtns 53.069 6.321 - 312500 203400 - - Bedrock Bedrock (schist) outcrop below glacial erosion limit 523 CN 10 Be - - - 18200 1200 Retreat Quartz vein Ballantyne et al. 2006

44 - DJ-01 Djouce, Wicklow Mtns 53.130 6.238 - 317900 210300 - - Bedrock Bedrock (schist) outcrop below glacial erosion limit 725 CN 10 Be - - - 19100 1200 Retreat Quartz vein Ballantyne et al. 2006 Exposure time Date cited here follows source best estimate of post- 45 - Table1-3 Bray 53.160 6.250 - 317039 213595 - - - 213 CN 36 Cl - - - 36000 13000 Bowen et al. 2002 (cumulative) exposure erosion. Possible location error. Exposure time Date cited here follows source best estimate of post- 46 - Table1-20 Lough Bray 53.175 6.250 - 316998 215264 - - - 420 CN 36 Cl - - - 15700 1100 Bowen et al. 2002 (cumulative) exposure erosion.

47 TO-238 BA 457 Ballybetagh 53.220 6.217 - 319100 220325 - - Twig Deepest sample from bog; overlies basal clay 230 14 C AMS 12540 80 INTCAL09 14783 261 Ice free Cwynar and Watts 1989

48 Birm-458 - Howth Demesne, Co. Dublin 53.383 6.067 - 328300 238400 - - Peat Between two calcareous tills - 14 C 12040 110 INTCAL09 13896 118 Retreat; Advance Shotton et al. 1974

49 - MWR-02 Mweelrea, W.Ireland 53.622 9.812 - 80100 265100 - - Bedrock Bedrock below glacial erosion limit 305 CN 10 Be - - - 15100 1000 Retreat Sandstone Ballantyne et al. 2008

50 - MWR-05 Mweelrea, W.Ireland 53.644 9.825 - 79300 267600 - - Bedrock Bedrock below glacial erosion limit 650 CN 10 Be - - - 13200 800 Retreat Sandstone Ballantyne et al. 2008 Exposure time 51 - MWR-07 Mweelrea, W.Ireland 53.651 9.811 - 80300 268300 - - Bedrock Bedrock above glacial erosion limit 790 CN 10 Be - - - 43200 2800 Sandstone Ballantyne et al. 2008 (cumulative) 52 D-136F - Old Head, Co. Mayo 53.783 9.783 - 82469 283000 - - Organics Organic deposit underlies till - 14 C 10010 170 INTCAL09 11512 263 Advance ~Younger Dryas Dresser 1980

53 - FAH-04 Farnaght Hill, W.Ireland 53.779 9.534 - 98900 282200 - - Bedrock Bedrock below glacial erosion limit 125 CN 10 Be - - - 16700 1000 Retreat Vein quartz Ballantyne et al. 2008

54 SUERC b588 FL-04-06 Furnace Lough 53.915 9.581 - 96147 297354 - - Boulder Boulder on moraine 22 CN 10 Be - - - 16370 1070 Margin Arkose J. Clark et al. 2009b 55 SUERC b274 FL-04-07 Furnace Lough 53.919 9.579 - 96261 297752 - - Boulder Boulder on moraine 14 CN 10 Be - - - 16110 720 Margin Quartz (pebble conglomerate) J. Clark et al. 2009b 55 SUERC b473 FL-04-08 Furnace Lough 53.919 9.579 - 96261 297752 - - Boulder Boulder on moraine 14 CN 10 Be - - - 15410 890 Margin Quartz (pebble conglomerate) J. Clark et al. 2009b 55 SUERC b271 FL-04-09 Furnace Lough 53.919 9.579 - 96261 297752 - - Boulder Boulder on moraine 14 CN 10 Be - - - 14110 710 Margin Quartz (pebble conglomerate) J. Clark et al. 2009b 56 SUERC b586 FL-04-01 Furnace Lough 53.921 9.589 - 95643 298011 - - Boulder Boulder on moraine 39 CN 10 Be - - - 15690 1030 Margin Quartz (arkose) J. Clark et al. 2009b 56 SUERC b587 FL-04-02 Furnace Lough 53.921 9.589 - 95643 298011 - - Boulder Boulder on moraine 39 CN 10 Be - - - 15220 1010 Margin Quartz (arkose) J. Clark et al. 2009b 57 SUERC b382 FL-04-04 Furnace Lough 53.926 9.558 - 97665 298522 - - Boulder Boulder on moraine 72 CN 10 Be - - - 14270 850 Margin Quartz (arkose) J. Clark et al. 2009b 58 SUERC b383 FL-04-05 Furnace Lough 53.928 9.560 - 97571 298725 - - Boulder Boulder on moraine 74 CN 10 Be - - - 17280 1020 Margin Quartz (arkose) J. Clark et al. 2009b

59 - CM-04 Anaffrin East Col, W.Ireland 53.952 9.711 - 87700 301600 - - Bedrock Bedrock below glacial erosion limit 440 CN 10 Be - - - 17100 1100 Retreat Quartzite outcrop Ballantyne et al. 2008

59 - CM-05 Anaffrin East Col, W.Ireland 53.952 9.711 - 87700 301600 - - Bedrock Bedrock below glacial erosion limit 440 CN 10 Be - - - 17200 1100 Retreat Quartzite outcrop Ballantyne et al. 2008 Exposure time 60 - CM-06 Bengorm North, W.Ireland 53.966 9.672 - 90300 303200 - - Bedrock Bedrock above glacial erosion limit 716 CN 10 Be - - - 61600 4000 Quartzite outcrop Ballantyne et al. 2008 (cumulative)

Page 2 of 19 Dates relating to the build up and retreat of the last British -Irish Ice Sheet. Version 2.0. Census date: 1 May 2012.

62 - LACOR-03 Lough Accorymore, W.Ireland 53.983 10.176 - 57300 305900 - - Bedrock Roche moutonnée, mouth of corrie 287 CN 10 Be - - - 14500 900 Retreat Vein quartz Ballantyne et al. 2008 Exposure time Date cited here follows source best estimate of post- 63 - Table1-23 Lough Accorymore 53.982 10.170 - 57663 305789 - - - 200 CN 36 Cl - - - 11800 600 Bowen et al. 2002 (cumulative) exposure erosion.

64 - LACOR-09 Lough Accorymore, W.Ireland 53.981 10.166 - 57900 305700 - - Boulder Boulder on corrie moraine 198 CN 10 Be - - - 15000 1000 Margin Vein quartz Ballantyne et al. 2008

65 - LACOR-06 Lough Accorymore, W.Ireland 53.982 10.163 - 58100 305800 - - Boulder Boulder on corrie moraine 190 CN 10 Be - - - 11700 700 Margin Quartzite Ballantyne et al. 2008 Exposure time Date cited here follows source best estimate of post- 66 - Table1-14 Lough Nakeeroge 53.997 10.137 - 59897 307392 - - - 5 CN 36 Cl - - - 18000 4000 Bowen et al. 2002 (cumulative) exposure erosion. Exposure time Date cited here follows source best estimate of post- 66 - Table1-18 Lough Nakeeroge 53.997 10.137 - 59897 307392 - - - 5 CN 36 Cl - - - 17000 2100 Bowen et al. 2002 (cumulative) exposure erosion.

67 - CH-01 Cornaclea Hill, W.Ireland 53.998 10.123 - 60800 307500 - - Bedrock Bedrock below glacial erosion limit 269 CN 10 Be - - - 24000 1600 Retreat Vein quartz Ballantyne et al. 2008

67 - CH-02 Cornaclea Hill, W.Ireland 53.998 10.123 - 60800 307500 - - Bedrock Bedrock below glacial erosion limit 269 CN 10 Be - - - 23100 1700 Retreat Vein quartz Ballantyne et al. 2008 Exposure time Date cited here follows source best estimate of post- 68 - Table1-4 Knocknagravure 54.092 10.082 - 63795 317889 - - - 20 CN 36 Cl - - - 32900 5100 Bowen et al. 2002 (cumulative) exposure erosion. 69 SSR-2713 - Belderg Pier, Co. Mayo 54.311 9.553 - 98900 341400 - - Mollusc Marine mud - 14 C AMS 16940 120 MARINE09 19761 88 Ice free McCabe et al. 1986 69 AA56707 - Belderg Pier, Co. Mayo 54.311 9.553 - 98900 341400 - - Mollusc Marine mud overlies striated bedrock - 14 C AMS 16328 67 MARINE09 19099 162 Retreat McCabe et al. 2005 69 AA56706 - Belderg Pier, Co. Mayo 54.311 9.553 - 98900 341400 - - Mollusc Marine mud overlies striated bedrock - 14 C AMS 16389 74 MARINE09 19139 167 Retreat McCabe et al. 2005 69 AA56705 - Belderg Pier, Co. Mayo 54.311 9.553 - 98900 341400 - - Mollusc Marine mud overlies striated bedrock - 14 C AMS 18675 99 MARINE09 21806 211 Retreat McCabe et al. 2005 69 AA56704 - Belderg Pier, Co. Mayo 54.311 9.553 - 98900 341400 - - Foram Marine mud overlies striated bedrock - 14 C AMS 16830 130 MARINE09 19508 84 Retreat McCabe et al. 2005 69 AA53589 - Belderg Pier, Co. Mayo 54.311 9.553 - 98900 341400 - - Mollusc Marine mud overlies striated bedrock - 14 C AMS 16980 120 MARINE09 19757 114 Retreat McCabe et al. 2005 69 AA56703 - Belderg Pier, Co. Mayo 54.311 9.553 - 98900 341400 - - Foram Marine mud overlies striated bedrock - 14 C AMS 16627 83 MARINE09 19369 107 Retreat McCabe et al. 2005 70 SSR-2714 - Fiddauntawnanoneen, Co. Mayo 54.309 9.526 - 100700 341150 - - Mollusc Marine mud overlies diamict - 14 C AMS 17370 100 MARINE09 20172 157 Retreat McCabe et al. 1986 Fragments interpreted by authors as not in situ , reworked 71 CAMS115268 - Glenulra Farm 54.299 9.434 - 106600 339850 - - Shell fragments Within gravel delta terrace 80 14 C AMS 22320 90 MARINE09 26231 142 Unclassified McCabe et al. 2007a from earlier phase Fragments interpreted by authors as not in situ , reworked 71 CAMS115267 - Glenulra Farm 54.299 9.434 - 106600 339850 - - Shell fragments Within gravel delta terrace 80 14 C AMS 33950 340 MARINE09 38290 503 Unclassified McCabe et al. 2007a from earlier phase Fragments interpreted by authors as not in situ , reworked 71 CAMS115066 - Glenulra Farm 54.299 9.434 - 106600 339850 - - Shell fragments Within gravel delta terrace 80 14 C AMS 27600 130 MARINE09 31380 100 Unclassified McCabe et al. 2007a from earlier phase Fragments interpreted by authors as not in situ , reworked 71 CAMS115266 - Glenulra Farm 54.299 9.434 - 106600 339850 - - Shell fragments Within gravel delta terrace 80 14 C AMS 27780 170 MARINE09 31473 139 Unclassified McCabe et al. 2007a from earlier phase 71 AA56702 - Glenulra Farm 54.299 9.434 - 106600 339850 - - Foram Marine mud overlies till - 14 C AMS 21530 220 MARINE09 25272 333 Retreat McCabe et al. 2007a 71 CAMS111594 - Glenulra Farm 54.299 9.434 - 106600 339850 - - Foram Marine mud overlies till - 14 C AMS 23800 110 MARINE09 28207 177 Retreat McCabe et al. 2007a 71 CAMS111595 - Glenulra Farm 54.299 9.434 - 106600 339850 - - Foram Marine mud overlies till - 14 C AMS 23930 110 MARINE09 28285 176 Retreat McCabe et al. 2007a 71 CAMS105068 - Glenulra Farm 54.299 9.434 - 106600 339850 - - Foram Marine mud overlies till - 14 C AMS 24140 110 MARINE09 28484 188 Retreat McCabe et al. 2007a 71 CAMS105065 - Glenulra Farm 54.299 9.434 - 106600 339850 - - Shell fragments Within till and brecciated bedrock 65 14 C AMS 24030 90 MARINE09 28372 177 Advance McCabe et al. 2007a 71 CAMS115271 - Glenulra Farm 54.299 9.434 - 106600 339850 - - Shell fragments Within till and brecciated bedrock 65 14 C AMS 25030 130 MARINE09 29452 132 Advance McCabe et al. 2007a 71 CAMS115269 - Glenulra Farm 54.299 9.434 - 106600 339850 - - Shell fragments Within till and brecciated bedrock 65 14 C AMS 34870 390 MARINE09 39463 536 Advance McCabe et al. 2007a 71 CAMS105067 - Glenulra Farm 54.299 9.434 - 106600 339850 - - Shell fragments Within till and brecciated bedrock 65 14 C AMS 39940 490 MARINE09 43657 422 Advance McCabe et al. 2007a Follows original author interpretation that shell fragments 72 CAMS115272 - Glenulra Quarry 54.302 9.433 - 106750 340200 - - Shell fragments Boulder gravel with shell fragments overlies till 50 14 C AMS 27330 160 MARINE09 31266 96 Advance are reworked by glacial episode from period prior to McCabe et al. 2007a advance. Follows original author interpretation that shell fragments 72 CAMS115273 - Glenulra Quarry 54.302 9.433 - 106750 340200 - - Shell fragments Boulder gravel with shell fragments overlies till 50 14 C AMS 24780 120 MARINE09 29258 213 Advance are reworked by glacial episode from period prior to McCabe et al. 2007a advance. Follows original author interpretation that shell fragments 72 CAMS115274 - Glenulra Quarry 54.302 9.433 - 106750 340200 - - Shell fragments Boulder gravel with shell fragments overlies till 50 14 C AMS 30060 220 MARINE09 34382 305 Advance are reworked by glacial episode from period prior to McCabe et al. 2007a advance. 73 SUERC b270 OX-03-09 Ox Mountains 54.148 8.845 - 144804 322424 - - Boulder Boulder on moraine 199 CN 10 Be - - - 18150 820 Margin Quartz (gneiss) J. Clark et al. 2009b 74 SUERC b478 OX-03-07 Ox Mountains 54.140 8.836 - 145369 321594 - - Boulder Boulder on moraine 269 CN 10 Be - - - 16600 930 Margin Quartz (gneiss) J. Clark et al. 2009b 75 SUERC b219 OX-03-06 Ox Mountains 54.139 8.836 - 145367 321416 - - Boulder Boulder on moraine 285 CN 10 Be - - - 14790 1100 Margin Quartz (gneiss) J. Clark et al. 2009b 76 SUERC b472 OX-03-10 Ox Mountains 54.213 8.763 - 150207 329609 - - Boulder Boulder on moraine 290 CN 10 Be - - - 16960 1060 Margin Quartz (gneiss) J. Clark et al. 2009b 77 SUERC b476 OX-03-01 Ox Mountains 54.187 8.709 - 153753 326734 - - Boulder Boulder on moraine 205 CN 10 Be - - - 15000 870 Margin Quartz (gneiss) J. Clark et al. 2009b 77 SUERC b224 OX-03-02 Ox Mountains 54.187 8.709 - 153753 326734 - - Boulder Boulder on moraine 205 CN 10 Be - - - 13910 930 Margin Quartz (gneiss) J. Clark et al. 2009b 77 SUERC b225 OX-03-03 Ox Mountains 54.187 8.709 - 153753 326734 - - Boulder Boulder on moraine 205 CN 10 Be - - - 14530 810 Margin Quartz (gneiss) J. Clark et al. 2009b 77 SUERC b477 OX-03-05 Ox Mountains 54.187 8.709 - 153753 326734 - - Boulder Boulder on moraine 205 CN 10 Be - - - 14960 790 Margin Quartz (gneiss) J. Clark et al. 2009b 78 OxA-3706 - Kesh Corran Caves, Co. Sligo # 54.050 8.450 - 170530 311300 - - Bone Cave - 14 C AMS 11920 85 INTCAL09 13777 106 Ice free Brown bear Woodman et al. 1997 78 OxA-3693 - Kesh Corran Caves, Co. Sligo 54.050 8.450 - 170530 311300 - - Bone Cave - 14 C AMS 11790 120 INTCAL09 13623 137 Ice free Red deer Woodman et al. 1997 78 OxA-3708 - Kesh Corran Caves, Co. Sligo 54.050 8.450 - 170530 311300 - - Bone Cave - 14 C AMS 11150 90 INTCAL09 13030 118 Ice free Wolf Woodman et al. 1997 78 OxA-5736 - Kesh Corran Caves, Co. Sligo 54.050 8.450 - 170530 311300 - - Bone Cave - 14 C AMS 12190 130 INTCAL09 14030 211 Ice free Hare Woodman et al. 1997 78 OxA-3709 - Kesh Corran Caves, Co. Sligo 54.050 8.450 - 170530 311300 - - Bone Cave - 14 C AMS 10060 100 INTCAL09 11583 192 Ice free Arctic lemming Woodman et al. 1997

79 Q-16 - Knocknacran, Co. Monaghan 53.933 6.767 - 281000 298925 - - Organics Organic lake sediments - 14 C 14367 300 INTCAL09 17484 362 Unclassified Hardwater contamination Godwin and Willis 1959

80 AA68976 - Port 53.840 6.253 - 315000 289200 - - Foram Marine mud rafted within till - 14 C AMS 15590 85 MARINE09 18544 62 Advance McCabe et al. 2007b 80 AA68975 - Port 53.840 6.253 - 315000 289200 - - Foram Marine mud rafted within till - 14 C AMS 15700 90 MARINE09 18593 88 Advance McCabe et al. 2007b 80 CAMS105063 - Port 53.840 6.253 - 315000 289200 - - Foram Marine mud rafted within till - 14 C AMS 15850 45 MARINE09 18660 66 Advance McCabe et al. 2007b 80 CAMS105064 - Port 53.840 6.253 - 315000 289200 - - Foram Marine mud rafted within till - 14 C AMS 16440 550 MARINE09 19122 477 Advance McCabe et al. 2007b

81 AA56700 - Linns 53.904 6.369 - 307200 296200 - - Foram Marine mud overlies outwash and underlies deformed sediments and diamict - 14 C AMS 14557 69 MARINE09 17154 119 Retreat; Advance McCabe et al. 2005

Deformed marine mud overlies diamict and underlies outwash; i.e. dates retreat of ice 82 AA56701 - Rathcor Bay 53.987 6.227 - 316300 305600 - - Foram - 14 C AMS 14650 130 MARINE09 17335 214 Retreat; Advance McCabe et al. 2005 followed by an advance which deformed sediments and deposited outwash

Reported ages differ slightly (~40yrs) from those subsequently cited by McCabe for the same samples McCabe and Haynes 83 AA17693 - Cooley Point 53.981 6.142 - 321900 305100 - - Foram Marine mud underlies boulder pavement, sand & gravel - 14 C AMS 15420 110 MARINE09 18201 146 Ice free (McCabe et al. 2005, McCabe & Dunlop 2006, McCabe 1996 2008). Uncorrected ages taken from the latter because marine reservoir application in those papers is explicit.

Reported ages differ slightly (~40yrs) from those subsequently cited by McCabe for the same samples McCabe and Haynes 83 AA17694 - Cooley Point 53.981 6.142 - 321900 305100 - - Foram Marine mud underlies boulder pavement, sand & gravel - 14 C AMS 15790 110 MARINE09 18637 91 Ice free (McCabe et al. 2005, McCabe & Dunlop 2006, McCabe 1996 2008). Uncorrected ages taken from the latter because marine reservoir application in those papers is explicit.

Reported ages differ slightly (~40yrs) from those subsequently cited by McCabe for the same samples McCabe and Haynes 83 AA17695 - Cooley Point 53.981 6.142 - 321900 305100 - - Foram Marine mud underlies boulder pavement, sand & gravel - 14 C AMS 15800 140 MARINE09 18657 115 Ice free (McCabe et al. 2005, McCabe & Dunlop 2006, McCabe 1996 2008). Uncorrected ages taken from the latter because marine reservoir application in those papers is explicit. Exposure time Date cited here follows source best estimate of post- 84 - Table1-16 Windy Gap 54.050 6.250 - 314603 312627 - - 243 CN 36 Cl - - - 17300 600 Bowen et al. 2002 (cumulative) exposure erosion. Possible location error.

85 AA21818 - Cranfield Point 54.024 6.057 - 327300 311000 - - Foram Marine mud underlies outwash - 14 C AMS 15105 130 MARINE09 17841 203 Ice free; Advance McCabe and Clark 1998

85 AA21819 - Cranfield Point 54.024 6.057 - 327300 311000 - - Foram Marine mud underlies outwash - 14 C AMS 16005 140 MARINE09 18759 115 Ice free; Advance McCabe and Clark 1998

86 CAMS-89688 - Kilkeel Steps 54.050 6.000 - 331000 313500 - - Foram Marine muds infill channel cut into glaciomarine diamict - 14 C AMS 17370 190 MARINE09 20126 250 Retreat P. Clark et al. 2004 86 CAMS-89687 - Kilkeel Steps 54.050 6.000 - 331000 313500 - - Foram Marine muds infill channel cut into glaciomarine diamict - 14 C AMS 16940 70 MARINE09 19757 69 Retreat P. Clark et al. 2004 86 CAMS-89686 - Kilkeel Steps 54.050 6.000 - 331000 313500 - - Foram Marine muds infill channel cut into glaciomarine diamict - 14 C AMS 17040 70 MARINE09 19728 157 Retreat P. Clark et al. 2004 Originally reported in McCabe & Clark 1998 and described 86 AA22351 - Kilkeel Steps 54.050 6.000 - 331000 313500 - - Foram Marine muds infill channel cut into glaciomarine diamict - 14 C AMS 17160 130 MARINE09 19974 158 Retreat P. Clark et al. 2004 as mud below outwash. Originally reported in McCabe & Clark 1998 and described 86 AA22352 - Kilkeel Steps 54.050 6.000 - 331000 313500 - - Foram Marine muds infill channel cut into glaciomarine diamict - 14 C AMS 17150 160 MARINE09 19966 167 Retreat P. Clark et al. 2004 as mud below outwash. Exposure time Date cited here follows source best estimate of post- 87 - Table1-19 Leckan More 54.125 6.175 - 319299 321097 - - 354 CN 36 Cl - - - 16700 1000 Bowen et al. 2002 (cumulative) exposure erosion. Possible location error.

88 Birm. 166 - Derryvree 54.300 7.440 - 236381 339185 - - Organics Freshwater Organic silts between two tills - 14 C 30500 +1170 -1030 INTCAL09 35193 1270 Retreat; Advance Colhoun et al. 1972

Page 3 of 19 Dates relating to the build up and retreat of the last British -Irish Ice Sheet. Version 2.0. Census date: 1 May 2012.

91 AA22821 - Killard Point 54.313 5.535 - 360400 343300 - - Foram Marine mud interbedded in morainic outwash - 14 C AMS 14355 105 MARINE09 17004 131 Margin McCabe and Clark 1998

92 Q-360 - Roddan's Port, Co. Down 54.517 5.517 - 364000 365800 - - Organics Infill of interdrumlin hollow - 14 C 12110 190 INTCAL09 13975 268 Retreat Godwin and Willis 1964

92 UB-401A - Roddan's Port, Co. Down 54.511 5.467 - 364000 365800 - - Organics Infill of interdrumlin hollow 2 14 C 11390 160 INTCAL09 13260 147 Retreat Smith et al. 1971

93 AA21822 - Rough Island 54.546 5.689 - 349500 368900 - - Foram Marine mud drapes drumlin - 14 C AMS 13140 95 MARINE09 15071 188 Retreat McCabe and Clark 1998

93 AA68680 - Rough Island 54.546 5.689 - 349500 368900 - - Foram Marine mud drapes drumlin - 14 C AMS 13525 70 MARINE09 15964 368 Retreat McCabe et al. 2007b

94 UB-229A - Sluggan Bog 54.760 6.290 - 309900 392100 - - Bulk organic sample Deepest sample from bog, organic layer above 'boulder clay' 50 14 C 12360 165 INTCAL09 14359 311 Retreat Smith and Goddard 1991

94 UB-229C - Sluggan Bog 54.760 6.290 - 309900 392100 - - Humus Deepest sample from bog, organic layer above 'boulder clay' 50 14 C 11225 160 INTCAL09 13103 171 Retreat Smith and Goddard 1991

94 UB-229D - Sluggan Bog 54.760 6.290 - 309900 392100 - - Organics Deepest sample from bog, organic layer above 'boulder clay' particulates >250 μm 50 14 C 12060 125 INTCAL09 13910 138 Retreat Smith and Goddard 1991

94 UB-229F - Sluggan Bog 54.760 6.290 - 309900 392100 - - Organics Deepest sample from bog, organic layer above 'boulder clay' particulates >250 μm 50 14 C 12470 125 INTCAL09 14509 273 Retreat Smith and Goddard 1991

94 SRR-6427 SLG-1 Sluggan Bog 54.760 6.290 - 309900 392100 - - Humic Lowest sample from late-glacia organic unit, overlying diamict 50-65 14 C 12295 50 INTCAL09 14137 109 Retreat Lowe et al. 2004 94 AA-34265 SLG-1 Sluggan Bog 54.760 6.290 - 309900 392100 - - Humin Lowest sample from late-glacial organic unit, overlying diamict 50-66 14 C AMS 12430 85 INTCAL09 14466 276 Retreat Lowe et al. 2004 94 SUERC-12333 SB 1645-1880 Sluggan Bog 54.760 6.290 - 309900 392100 - - Wood silty clays overlain by peat and underlain by organics that overlie till 14 C AMS 11398 47 INTCAL09 13267 124 Retreat Walker et al. 2012 94 SUERC-12344 SB 1645-1880 Sluggan Bog 54.760 6.290 - 309900 392100 - - macrofossil silty clays overlain by peat and underlain by organics that overlie till 14 C AMS 9614 41 INTCAL09 10910 94 Retreat Walker et al. 2012 94 SUERC-12345 SB 1645-1880 Sluggan Bog 54.760 6.290 - 309900 392100 - - moss silty clays overlain by peat and underlain by organics that overlie till 14 C AMS 10238 43 INTCAL09 12017 116 Retreat Walker et al. 2012 94 SUERC-12343 SB 1645-1880 Sluggan Bog 54.760 6.290 - 309900 392100 - - Seeds silty clays overlain by peat and underlain by organics that overlie till 14 C AMS 11274 50 INTCAL09 13176 116 Retreat Walker et al. 2012 95 UB-2142 - Meenadoan Bog, Co. Tyrone 54.583 7.633 - 224500 371700 - - Organics Deepest sample from bog: i.e. no explicit indictaion of earlier ice cover 215 14 C 11440 185 INTCAL09 13293 181 Ice free Pearson 1979

96 - MAL-03 Malin Beg 54.704 8.759 - 151100 384300 - - Boulder Boulder 82 CN 10 Be - - - 15900 1000 Retreat Quartz vein Ballantyne et al. 2007a

97 - MAL-05 Malin Beg 54.715 8.743 - 152100 385500 - - Bedrock Roche moutonnée 31 CN 10 Be - - - 16600 1100 Retreat Quartz vein Ballantyne et al. 2007a Exposure time Date cited here follows source best estimate of post- 98 - Table1-5 Bloody Foreland 55.000 8.000 - 200000 416949 - - - 70 CN 36 Cl - - - 31000 17000 Bowen et al. 2002 (cumulative) exposure erosion. Possible location error.

99 - BF-01 Bloody Foreland 55.138 8.290 - 181500 432300 - - Boulder Boulder 75 CN 10 Be - - - 18600 1400 Retreat Quartz (granite) Ballantyne et al. 2007a

100 SUERC b220 BF-04-05 Bloody Foreland 55.132 8.280 - 182129 431690 - - Boulder Boulder on moraine 108 CN 10 Be - - - 18841 1514 Margin Quartz (granite) J. Clark et al. 2009a 100 SUERC b589 BF-04-06 Bloody Foreland 55.132 8.280 - 182129 431690 - - Boulder Boulder on moraine 108 CN 10 Be - - - 18948 1685 Margin Quartz (granite) J. Clark et al. 2009a 101 SUERC b275 BF-04-01 Bloody Foreland 55.131 8.281 - 182078 431601 - - Boulder Boulder on moraine 107 CN 10 Be - - - 15858 1411 Margin Quartz (granite) J. Clark et al. 2009a 101 SUERC b381 BF-04-03 Bloody Foreland 55.131 8.281 - 182078 431601 - - Boulder Boulder on moraine 107 CN 10 Be - - - 29229 2372 Margin Quartz (granite) J. Clark et al. 2009a 102 SUERC b272 BF-04-04 Bloody Foreland 55.131 8.280 - 182116 431601 - - Boulder Boulder on moraine 116 CN 10 Be - - - 19333 1452 Margin Quartz (granite) J. Clark et al. 2009a 103 SUERC b475 BF-04-08 Bloody Foreland 55.131 8.281 - 182090 431578 - - Boulder Boulder on moraine 107 CN 10 Be - - - 20965 1766 Margin Quartz (granite) J. Clark et al. 2009a 103 SUERC b470 BF-04-09 Bloody Foreland 55.131 8.281 - 182090 431578 - - Boulder Boulder on moraine 107 CN 10 Be - - - 19324 1700 Margin Quartz (granite) J. Clark et al. 2009a 103 SUERC b471 BF-04-10 Bloody Foreland 55.131 8.281 - 182090 431578 - - Boulder Boulder on moraine 107 CN 10 Be - - - 19663 1712 Margin Quartz (granite) J. Clark et al. 2009a

104 - BF-02 Bloody Foreland 55.133 8.165 - 189500 431800 - - Boulder Boulder 70 CN 10 Be - - - 16300 1200 Retreat Quartz (granite) Ballantyne et al. 2007a Exposure time Date cited here follows source best estimate of post- 105 - Table1-6 Malin Head 55.380 7.373 - 239740 459429 - - - 55 CN 36 Cl - - - 25100 1100 Bowen et al. 2002 (cumulative) exposure erosion.

106 AA32315 - Corvish 55.278 7.256 - 247300 448200 - - Foram Laminated marine mud overlies deformed marine mud - 14 C AMS 14445 100 MARINE09 17060 157 Retreat McCabe and Clark 2003 Original authors interpret deformed mud as product of ice 106 AA45968 - Corvish 55.278 7.256 - 247300 448200 - - Foram Deformed marine mud - 14 C AMS 16120 160 MARINE09 18820 154 Advance McCabe and Clark 2003 advance Original authors interpret deformed mud as product of ice 106 AA45967 - Corvish 55.278 7.256 - 247300 448200 - - Foram Deformed marine mud - 14 C AMS 15490 150 MARINE09 18198 140 Advance McCabe and Clark 2003 advance Original authors interpret deformed mud as product of ice 106 AA45966 - Corvish 55.278 7.256 - 247300 448200 - - Foram Deformed marine mud - 14 C AMS 16460 430 MARINE09 19159 409 Advance McCabe and Clark 2003 advance Original authors interpret deformed mud as product of ice 106 AA33831 - Corvish 55.278 7.256 - 247300 448200 - - Foram Laminated marine mud underlies deformed marine mud - 14 C AMS 15425 95 MARINE09 18198 140 Advance McCabe and Clark 2003 advance Original authors interpret deformed mud as product of ice 106 AA33832 - Corvish 55.278 7.256 - 247300 448200 - - Foram Laminated marine mud underlies deformed marine mud - 14 C AMS 17540 110 MARINE09 20323 154 Advance McCabe and Clark 2003 advance 107 UB-2013 - Mountsandel, Coleraine 55.117 6.667 - 285300 430700 - - Peat Deepest sample from kettle hole infill 30 14 C 12175 90 INTCAL09 14017 128 Retreat Pearson 1979 Exposure time Unplotted due to location error; incorrect location 108* - Table1-15 Rasharkin 54.992 5.430 - 364463 419081 - - - 186 CN 36 Cl - - - 17500 2600 Bowen et al. 2002 (cumulative) information provided in source Scourse 2006; Evans et 109 QTL1d - Little Porth Askin 49.885 6.342 - - - 88200 7400 Sand Old Man sandloess; overlies breccia in south and till in north - TL - - - 18800 3700 Ice free Wintle 1981 al. 2005 Possible contamination discarded from analysis as 109 Q-2176 - Little Porth Askin 49.885 6.342 - - - 88200 7400 Organics Organics in breccia, overlain by loess 'Old Man Sandloess' - 14 C 25920 325 INTCAL09 30705 263 Unclassified unreliable; humin and humic dates from reassessment of Scourse 2006 site Possible contamination discarded from analysis as 109 Q-2371 - Little Porth Askin 49.885 6.342 - - - 88200 7400 Humic Organics in breccia, overlain by loess 'Old Man Sandloess' - 14 C 20960 180 INTCAL09 24931 283 Unclassified unreliable; humin and humic dates from reassessment of Scourse 2006 site Possible contamination discarded from analysis as 109 Q-2413 - Little Porth Askin 49.885 6.342 - - - 88200 7400 Humic Organics in breccia, overlain by loess 'Old Man Sandloess' - 14 C 22960 +625 -580 INTCAL09 27626 773 Unclassified unreliable; humin and humic dates from reassessment of Scourse 2006 site Possible contamination discarded from analysis as 109 Q-2370 - Little Porth Askin 49.885 6.342 - - - 88200 7400 Humin Organics in breccia, overlain by loess 'Old Man Sandloess' - 14 C 23980 +1400 -1200 INTCAL09 28898 1397 Unclassified unreliable; humin and humic dates from reassessment of Scourse 2006 site 109 Q-2412 - Little Porth Askin 49.885 6.342 - - - 88200 7400 Humin Overlain by 'Old Man Sandloess' - 14 C 24550 +500 -400 INTCAL09 29245 556 Ice free Regarded as most reliable Scourse 2006 Exposure time Scourse and McCarroll 110 - - Peninnis Head 49.904 6.290 - - - 91200 9300 Tor Outside glacial erosion limit - CN 10 Be - - - >113000 Granite Scourse 2006 (cumulative) 2006 Exposure time 110** SC-06 Scilly Isles 49.905 6.300 91300 9500 Tor Outside Last Glacial Maximum glacial limit. 15 CN 10 Be 114900 12000 outside the LGM glacial limit. McCarroll et al. 2010 (cumulative) 111 738al - Carn Morval 49.925 6.313 - - - 90600 11700 Sand Old Man Sandloess' - OSL - - - 20000 7000 Unclassified Large errors Smith et al. 1990 Scourse 2006 111 741al - Carn Morval 49.925 6.313 - - - 90600 11700 Sand Old Man Sandloess' - OSL - - - 26000 +10000 -9000 Unclassified Large errors Smith et al. 1990 Scourse 2006 111 Q-2358 - Carn Morval 49.925 6.313 - - - 90600 11700 Humin Organic silt overlain by solifluction breccia, overlain by loess - 14 C 21500 +890 -800 INTCAL09 25697 1174 Ice free Regarded as most reliable Scourse 2006 111 Q-2359 - Carn Morval 49.925 6.313 - - - 90600 11700 Humic Organic silt overlain by solifluction breccia, overlain by loess - 14 C 19300 120 INTCAL09 23094 197 Unclassified Regarded as unreliable Scourse 2006 111 Q-2446 - Carn Morval 49.925 6.313 - - - 90600 11700 Humic Organic silt overlain by solifluction breccia, overlain by loess - 14 C 21640 +270 -260 INTCAL09 25849 434 Unclassified Regarded as unreliable Scourse 2006 111 Q-2357 - Carn Morval 49.925 6.313 - - - 90600 11700 Humic Organic silt overlain by solifluction breccia, overlain by loess - 14 C 19860 +220 -210 INTCAL09 23704 289 Unclassified Regarded as unreliable Scourse 2006 111 Q-2356 - Carn Morval 49.925 6.313 - - - 90600 11700 Humin Organic silt overlain by solifluction breccia, overlain by loess - 14 C 24490 +960 -860 INTCAL09 29347 947 Ice free Regarded as most reliable Scourse 2006 111 QTL1f - Carn Morval 49.925 6.313 - - - 90600 11700 Sand Well sorted sandy silt, loess, overlies breccia - TL - - - 18600 3700 Ice free Old Man Sandloess' Wintle 1981 Scourse 2006 High risk of contamination at this site discarded from 111 Q-2177 - Carn Morval 49.925 6.313 - - - 90600 11700 Organics Organics interdigitate with breccia, overlain by loess - 14 C 20630 +480 -450 INTCAL09 24544 604 Unclassified Wintle 1981 Scourse 2006 analysis as unreliable High risk of contamination at this site discarded from 111 Q-2176 - Carn Morval 49.925 6.313 - - - 90600 11700 Organics Organics interdigitate with breccia, overlain by loess - 14 C 26550 +700 -650 INTCAL09 30970 523 Unclassified Wintle 1981 Scourse 2006 analysis as unreliable Most reliable of series of dates taken on basis of 112 Q-2407 - Watermill Cove 49.932 6.287 - - - 92500 12300 Humin Overlain by solifluction breccia - 14 C 26680 +1410 -1200 INTCAL09 31406 1287 Ice free Scourse 2006 radiocarbon content; rest not reported here Most reliable of series of dates taken on basis of 112 Q-2408 - Watermill Cove 49.932 6.287 - - - 92500 12300 Humin Overlain by solifluction breccia - 14 C 33050 100 INTCAL09 37689 396 Ice free Scourse 2006 radiocarbon content; rest not reported here 112 GaK-2471 - Watermill Cove 49.932 6.287 - - - 92500 12300 Organics Overlain by solifluction breccia - 14 C 21200 +900 -600 INTCAL09 25462 1178 Unclassified Regarded as least reliable of series Page 1972 Scourse 2006 112 T-883 - Watermill Cove 49.932 6.287 - - - 92500 12300 Organics Overlain by solifluction breccia - 14 C 22200 400 INTCAL09 26606 463 Unclassified Regarded as least reliable of series Page 1972 Scourse 2006 112 Q-2362 - Watermill Cove 49.932 6.287 - - - 92500 12300 Humin Organics overlain by breccia, overlain by loess - 14 C 24900 +430 -410 INTCAL09 29828 432 Unclassified Young contamination Scourse 1991 Scourse 2006 112 Q-2363 - Watermill Cove 49.932 6.287 - - - 92500 12300 Humic Organics overlain by breccia, overlain by loess - 14 C 23030 +1275 -1100 INTCAL09 27675 1512 Unclassified Young contamination Scourse 1991 Scourse 2006 112 Q-2360 - Watermill Cove 49.932 6.287 - - - 92500 12300 Humin Organics overlain by breccia, overlain by loess - 14 C 27800 +1770 -1450 INTCAL09 32613 1610 Unclassified Young contamination Scourse 1991 Scourse 2006 112 Q-2361 - Watermill Cove 49.932 6.287 - - - 92500 12300 Humic Organics overlain by breccia, overlain by loess - 14 C 23250 +1720 -1420 INTCAL09 27733 1943 Unclassified Young contamination Scourse 1991 Scourse 2006 112 Q-2406 - Watermill Cove 49.932 6.287 - - - 92500 12300 Humic Organics overlain by breccia, overlain by loess - 14 C 28870 +590 -550 INTCAL09 33635 818 Unclassified Young contamination Scourse 1991 Scourse 2006 112 Q-2447 - Watermill Cove 49.932 6.287 - - - 92500 12300 Humic Organics overlain by breccia, overlain by loess - 14 C 31770 +850 -770 INTCAL09 36069 935 Unclassified Young contamination Scourse 1991 Scourse 2006 112 X1259 - Watermill Cove 49.932 6.287 - - - 92500 12300 Sand Raised beach overlain by (para)glacial sequence - OSL - - - 112000 17000 Unclassified Possible feldspar contamination Scourse et al. 2004 Scourse 2006 112 X1260 - Watermill Cove 49.932 6.287 - - - 92500 12300 Sand Raised beach overlain by (para)glacial sequence - OSL - - - 82000 5000 Unclassified Possible feldspar contamination Scourse et al. 2004 Scourse 2006

Page 4 of 19 Dates relating to the build up and retreat of the last British -Irish Ice Sheet. Version 2.0. Census date: 1 May 2012.

123 NPL-80 - Mullock Bridge 51.725 5.166 - - - 181405 207739 Shell Outwash gravel beneath till - 14 C 37960 +1700 -1400 MARINE09 42263 1416 Advance Andersen et al. 1981

Approximately 37 km from maximum drift limit – therefore not used to constrain the glaciation. Human 124 OxA-1490 - Little Hoyle 51.666 4.731 - - - 211180 199970 Tooth Cave - 14 C 23340 350 INTCAL09 28166 358 Unclassified Hedges et al. 1993 CBA date list occupation here throughout the glacial supports ice free conditions throughout the glacial in Pembrokeshire.

Approximately 37 km from maximum drift limit – therefore not used to constrain the glaciation. Human 124 OxA-2508 - Little Hoyle 51.666 4.731 - - - 211180 199970 Bone Cave - 14 C 23550 290 INTCAL09 28297 304 Unclassified Hedges et al. 1993 CBA date list occupation here throughout the glacial supports ice free conditions throughout the glacial in Pembrokeshire.

Approximately 37 km from maximum drift limit – therefore not used to constrain the glaciation. Human 124 OxA-1492 - Little Hoyle 51.666 4.731 - - - 211180 199970 Tooth Cave - 14 C 28930 800 INTCAL09 33586 954 Unclassified Hedges et al. 1993 CBA date list occupation here throughout the glacial supports ice free conditions throughout the glacial in Pembrokeshire.

Approximately 37 km from maximum drift limit – therefore not used to constrain the glaciation. Human 124 OxA-1491 - Little Hoyle 51.666 4.731 - - - 211180 199970 Tooth Cave - 14 C 34590 1500 INTCAL09 39570 1613 Unclassified Hedges et al. 1993 CBA date list occupation here throughout the glacial supports ice free conditions throughout the glacial in Pembrokeshire.

Approximately 37 km from maximum drift limit – therefore not used to constrain the glaciation. Human 124 OxA-1026 - Little Hoyle 51.666 4.731 - - - 211180 199970 Bone Cave - 14 C 17600 200 INTCAL09 21071 221 Unclassified Hedges et al. 1987 CBA date list occupation here throughout the glacial supports ice free conditions throughout the glacial in Pembrokeshire.

Approximately 37 km from maximum drift limit – therefore not used to constrain the glaciation. Human 124 OxA-1027 - Little Hoyle 51.666 4.731 - - - 211180 199970 Bone Cave - 14 C 22800 300 INTCAL09 27664 254 Unclassified Hedges et al. 1987 CBA date list occupation here throughout the glacial supports ice free conditions throughout the glacial in Pembrokeshire.

Approximately 37 km from maximum drift limit – therefore not used to constrain the glaciation. Human 124 OxA-1028 - Little Hoyle 51.666 4.731 - - - 211180 199970 Bone Cave - 14 C 29200 700 INTCAL09 33829 788 Unclassified Hedges et al. 1987 CBA date list occupation here throughout the glacial supports ice free conditions throughout the glacial in Pembrokeshire.

Approximately 37 km from maximum drift limit – therefore not used to constrain the glaciation. Human 124 ANU-4349 - Little Hoyle 51.667 4.730 - - - 211180 199970 Bone Cave - 14 C 17050 1000 INTCAL09 20395 1122 Unclassified Green 1984 CBA date list occupation here throughout the glacial supports ice free conditions throughout the glacial in Pembrokeshire.

Approximately 37 km from maximum drift limit – therefore not used to constrain the glaciation. Human 124 ANU-4348 - Little Hoyle 51.667 4.730 - - - 211180 199970 Bone Cave - 14 C 18200 1300 INTCAL09 21765 1544 Unclassified Green 1984 CBA date list occupation here throughout the glacial supports ice free conditions throughout the glacial in Pembrokeshire.

Approximately 37 km from maximum drift limit – therefore not used to constrain the glaciation. Human 124 ANU-4347 - Little Hoyle 51.667 4.730 - - - 211180 199970 Bone Cave - 14 C 20100 1100 INTCAL09 23867 1384 Unclassified Green 1984 CBA date list occupation here throughout the glacial supports ice free conditions throughout the glacial in Pembrokeshire.

Approximately 37 km from maximum drift limit – therefore not used to constrain the glaciation. Human 124 ANU-4350 - Little Hoyle 51.667 4.730 - - - 211180 199970 Bone Cave - 14 C 20800 900 INTCAL09 24905 1152 Unclassified Green 1984 CBA date list occupation here throughout the glacial supports ice free conditions throughout the glacial in Pembrokeshire.

Approximately 37 km from maximum drift limit – therefore not used to constrain the glaciation. Human 125 OxA-1024 - Hoyles Mouth 51.673 4.748 - - - 209992 200768 Bone Cave - 14 C 27900 600 INTCAL09 32152 661 Unclassified Hedges et al. 1987 CBA date list occupation here throughout the glacial supports ice free conditions throughout the glacial in Pembrokeshire. Woolly rhino. Minimum date for end of human 126 OxA-2509 - Coygan Cave 51.754 4.486 - - - 228400 209100 Bone Cave - 14 C 24620 320 INTCAL09 29442 409 Ice free Hedges et al. 1994 CBA date list occupation; human occupation before. Reindeer. Same level as hand axes, date for human 126 BM-499 - Coygan Cave 51.754 4.486 - - - 228400 209100 Bone Cave - 14 C 38684 +2713 -2024 INTCAL09 43048 2241 Ice free Stuart 1982 Jones and Keen 1993 occupation of site.

127 NPL-97 - Tre-llys 51.936 5.133 - - - 184654 231126 Shell Within ice contact deposits - 14 C 37310 +1515 -1275 MARINE09 41672 1322 Advance Bulk sample Andersen et al. 1981

Jones and Keen 1993 ; 128 - - Banc y Warren 52.102 4.629 - - - 219965 248172 Wood Organic lenses within glaciofluvial outwash - 14 C 33750 +2500 -1900 INTCAL09 38764 2485 Advance John 1967 Andersen et al. 1981

Bowen (1984) demonstrated that sequence Late 128 - - Banc y Warren 52.102 4.624 - - - 219965 248172 Wood From sands and gravels - 14 C 31800 +2500 -1900 INTCAL09 36502 2679 Advance Evans et al. 2005 Devensian and earlier radiocarbon dates due to reworking

129 - - Gower Peninsula 51.607 4.234 - - - 245289 192192 Boulder Sample from erratic on top of late Devensian end moraine - CN 36 Cl - - - 23200 2000 Margin Quartzite approx location Phillips et al.1994 Knight 2001 Exposure time Constraint on max extent of ice responsible for deposition Bowen 1994; Phillips et 130 - - Arthur’s Stone, Cefn Bryn 51.602 3.454 - - - 299300 190300 Cairn - CN 36 Cl - - - 22800 2000 Bowen 1999 (cumulative) of Langland member al. 1994 Molleson and Burleigh 131 - - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C 25650 1300 INTCAL09 30199 1154 Ice free Bos bone. Human occupation of cave. Jones and Keen 1993 1978 131 OxA-366 - Paviland Cave 51.550 4.255 - - - 243700 185900 Humic Cave - 14 C 28000 1700 INTCAL09 32685 1525 Ice free Charred bone. Human occupation Gowlett et al. 1986 CBA date list Human burial. Human femur and tibiae. Young date in Oakley 1968; Barker et al. 131 BM-374 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C 18460 340 INTCAL09 21947 388 Unclassified comparison to others, and earliest determination – CBA date list 1969 excluded as unreliable Aldhouse-Green and Bowen 2005; Jacobi 131 OxA-8025 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C AMS 25840 280 INTCAL09 30653 246 Ice free Human burial. Ochre stained rib fragment Pettitt 1998; Aldhouse- and Higham 2008 Green 2000 Hedges et al. 1989; Bowen 2005; Jacobi 131 OxA-1815 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C AMS 26350 550 INTCAL09 30899 370 Ice free Human burial. Bone powder from femur and tibiae Aldhouse-Green 2000 and Higham 2008

Page 5 of 19 Dates relating to the build up and retreat of the last British -Irish Ice Sheet. Version 2.0. Census date: 1 May 2012.

131 OxA-13657 - Goats Hole Cave, Paviland 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 42650 800 INTCAL09 45788 643 Ice free Woolly rhino Jacobi and Higham 2008

131 OxA-13438 - Goats Hole Cave, Paviland 51.550 4.255 - - - 243700 185900 Antler Cave - 14 C Ultra AMS 31990 180 INTCAL09 36546 148 Ice free Reindeer Jacobi and Higham 2008

131 OxA-13657 - Goats Hole Cave, Paviland 51.550 4.255 - - - 243700 185900 Antler Cave - 14 C Ultra AMS 37350 320 INTCAL09 42096 256 Ice free Reindeer Jacobi and Higham 2008

131 OxA-13439 - Goats Hole Cave, Paviland 51.550 4.255 - - - 243700 185900 Antler Cave - 14 C Ultra AMS 40570 370 INTCAL09 44438 301 Ice free Reindeer Jacobi and Higham 2008

131 OxA-13437 - Goats Hole Cave, Paviland 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 32870 200 INTCAL09 37332 440 Ice free Woolly rhino Jacobi and Higham 2008 Jacobi et al.2009

131 OxA-13377 - Goats Hole Cave, Paviland 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 33800 200 INTCAL09 38733 232 Ice free Woolly rhino Jacobi and Higham 2008 Jacobi et al.2009

131 OxA-140 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C 38800 8000 INTCAL09 42752 6075 Unclassified Very large error, excluded from analysis Gowlett et al. 1986 CBA date list Aldhouse-Green and Jacobi and Higham 131 OxA-7877 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C 27780 320 INTCAL09 31911 423 Ice free Indeterminate carbonized bone fragment Pettitt 1998 2008 Aldhouse-Green and Jacobi and Higham 131 OxA-7789 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C 28860 260 INTCAL09 33444 479 Ice free Indeterminate carbonized bone fragment Pettitt 1998 2008 Aldhouse-Green and 131 OxA-7112 - Paviland Cave 51.550 4.255 - - - 243700 185900 Ivory Cave - 14 C AMS 21100 550 INTCAL09 25213 708 Ice free Whittled mammoth ivory Pettitt 1998 Aldhouse-Green and 131 OxA-7111 - Paviland Cave 51.550 4.255 - - - 243700 185900 Ivory Cave - 14 C AMS 24140 400 INTCAL09 28975 409 Ice free Mammoth ivory pendant Pettitt 1998 Aldhouse-Green and 131 OxA-6938 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C AMS 18190 130 INTCAL09 21741 228 Ice free Knife made from wild horse bone Pettitt 1998 Aldhouse-Green and 131 OxA-7081 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C AMS 22780 320 INTCAL09 27448 456 Ice free Knife made from wild horse bone Pettitt 1998

131 OxA-6927 - Paviland Cave 51.550 4.255 - - - 243700 185900 Tooth Cave - 14 C Ultra AMS 23580 320 INTCAL09 28324 350 Ice free NMW24.94/121 filtered gelatin determination Equus ferus Jacobi and Higham 2008 NMW24.94/67 filtered gelatin determination Cervid 131 OxA-6929 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 15250 120 INTCAL09 18575 90 Ice free Jacobi and Higham 2008 indet.right dentary with P2 and P3 NMW24.94/68 samples of re-ultrafiltered gelatin archived 131 OxA-13434 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 18655 75 INTCAL09 22284 106 Ice free from the previous gelatin date Cervid indet.right dentary Jacobi and Higham 2008 with P2 and P4 NMW24.94/69 ultrafiltered gelatin determination Cervid 131 OxA-16714 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 21380 170 INTCAL09 25550 295 Ice free Jacobi and Higham 2008 indet.right dentary with P2 and P5 NMW24.94/160 filtered gelatin determination Bison 131 OxA-6931 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 31100 800 INTCAL09 35685 722 Ice free Jacobi and Higham 2008 priscus NMW24.94/161 samples of re-ultrafiltered gelatin 131 OxA-13435 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 30320 170 INTCAL09 34850 135 Ice free Jacobi and Higham 2008 archived from the previous gelatin date Bison priscus

131 OxA-6933 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 29300 480 INTCAL09 33982 553 Ice free NMW24.94/39 filtered gelatin determination Ursus arctos Jacobi and Higham 2008

NMW24.94/40 samples of re-ultrafiltered gelatin archived 131 OxA-13436 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 29740 150 INTCAL09 34594 146 Ice free Jacobi and Higham 2008 from the previous gelatin date Ursus arctos SMZ826.6.370 filtered gelatin determination Coelodonta 131 OxA-6936 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 32500 700 INTCAL09 37266 821 Ice free Jacobi and Higham 2008 antiquitatis SMZ826.6.371 samples of re-ultrafiltered gelatin archived 131 OxA-13437 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 32870 200 INTCAL09 37332 440 Ice free Jacobi and Higham 2008 from the previous gelatin date Coelodonta antiquitatis NMW24.94/14.2 filtered gelatin determination Ursus 131 OxA-6981 - Paviland Cave 51.550 4.255 - - - 243700 185900 Tooth Cave - 14 C Ultra AMS 17670 140 INTCAL09 21150 225 Ice free Jacobi and Higham 2008 arctos NMW24.94/14.3 ultrafiltered gelatin determination Ursus 131 OxA-16765 - Paviland Cave 51.550 4.255 - - - 243700 185900 Tooth Cave - 14 C Ultra AMS 28750 600 INTCAL09 33308 837 Ice free Jacobi and Higham 2008 arctos NMW24.94/164 filtered gelatin determination Bison 131 OxA-6984 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 27140 360 INTCAL09 31379 226 Ice free Jacobi and Higham 2008 priscus NMW24.94/165 samples of re-ultrafiltered gelatin 131 OxA-13418 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 31250 230 INTCAL09 36044 220 Ice free Jacobi and Higham 2008 archived from the previous gelatin date Bison priscus NMW24.94/233 filtered gelatin determination Rangifer 131 OxA-6985 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 19980 220 INTCAL09 23894 297 Ice free Jacobi and Higham 2008 tarandus NMW24.94/234 ultrafiltered gelatin determination 131 OxA-16602 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 23700 140 INTCAL09 28436 213 Ice free Jacobi and Higham 2008 Rangifer tarandus NMW24.94/235 ultrafiltered gelatin determinations, 131 OxA-17560 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 24240 110 INTCAL09 29087 245 Ice free solvent extraction prior to collagen extraction Rangifer Jacobi and Higham 2008 tarandus SMA836.1.34 filtered gelatin determination Equus 131 OxA-7081 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 22780 320 INTCAL09 27448 456 Ice free Jacobi and Higham 2008 metapodial knife or spatula SMA836.1.35 ultrafiltered gelatin determinations, solvent 131 OxA-13656 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 26170 150 INTCAL09 30911 153 Ice free extraction prior to collagen extraction Equus metapodial Jacobi and Higham 2008 knife or spatula No error range No error range provided so SMZ836.6.378 filtered gelatin determination Coelodonta 131 OxA-7082 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS >38100 0 - provided so unable Unclassified Jacobi and Higham 2008 unable to antiquitatis to calibrate calibrate SMZ836.6.379 ultrafiltered gelatin determinations, solvent 131 OxA-13657 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 42650 800 INTCAL09 45788 643 Ice free extraction prior to collagen extraction Coelodonta Jacobi and Higham 2008 antiquitatis SMZ836.6.54 filtered gelatin determination Rangifer 131 OxA-7083 - Paviland Cave 51.550 4.255 - - - 243700 185900 Antler Cave - 14 C Ultra AMS 33600 1200 INTCAL09 38231 1420 Ice free Jacobi and Higham 2008 tarandus SMZ836.6.55 samples of re-ultrafiltered gelatin archived 131 OxA-13438 - Paviland Cave 51.550 4.255 - - - 243700 185900 Antler Cave - 14 C Ultra AMS 31990 180 INTCAL09 36546 148 Ice free Jacobi and Higham 2008 from the previous gelatin date Rangifer tarandus SMZ836.6.59 filtered gelatin determination Rangifer 131 OxA-7085 - Paviland Cave 51.550 4.255 - - - 243700 185900 Antler Cave - 14 C Ultra AMS 35400 1600 INTCAL09 40299 1541 Ice free Jacobi and Higham 2008 tarandus SMZ836.6.60 ultrafiltered gelatin determinations, solvent 131 OxA-13658 - Paviland Cave 51.550 4.255 - - - 243700 185900 Antler Cave - 14 C Ultra AMS 37350 320 INTCAL09 42096 256 Ice free Jacobi and Higham 2008 extraction prior to collagen extraction Rangifer tarandus SMZ836.6.431 filtered gelatin determination Coelodonta 131 OxA-7086 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 35200 1500 INTCAL09 40178 1479 Ice free Jacobi and Higham 2008 antiquitatis SMZ836.6.432 samples of re-ultrafiltered gelatin archived 131 OxA-13377 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 33800 200 INTCAL09 38733 232 Unclassified Jacobi and Higham 2008 from the previous gelatin date Coelodonta antiquitatis SMZ836.6.146 filtered gelatin determination Crocuta 131 OxA-7087 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 17880 180 INTCAL09 21308 267 Unclassified Jacobi and Higham 2008 crocuta SMZ836.6.147 samples of re-ultrafiltered gelatin archived 131 OxA-13378 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 18430 70 INTCAL09 22024 210 Ice free Jacobi and Higham 2008 from the previous gelatin date Crocuta crocuta

SMZ836.6.148 ultrafiltered gelatin determinations, solvent 131 OxA-13659 - Paviland Cave 51.550 4.255 - - - 243700 185900 Bone Cave - 14 C Ultra AMS 23120 130 INTCAL09 27960 190 Ice free Jacobi and Higham 2008 extraction prior to collagen extraction Crocuta crocuta No error range No error range provided so SMZ836.4.432 filtered gelatin determination Rangifer 131 OxA-7089 - Paviland Cave 51.550 4.255 - - - 243700 185900 Antler Cave - 14 C Ultra AMS 37800 0 INTCAL09 provided so unable Unclassified Jacobi and Higham 2008 unable to tarandus to calibrate calibrate SMZ836.4.433 samples of re-ultrafiltered gelatin archived 131 OxA-13439 - Paviland Cave 51.550 4.255 - - - 243700 185900 Antler Cave - 14 C Ultra AMS 40570 370 INTCAL09 44438 301 Ice free Jacobi and Higham 2008 from the previous gelatin date Rangifer tarandus NMW24.94/140M. bone decalcified with the insoluble residue hydrolyzed and treated with charcoal before 131 OxA-7108 - Paviland Cave 51.550 4.255 - - - 243700 185900 Ivory Cave - 14 C Ultra AMS 22620 340 INTCAL09 27327 478 Ice free Jacobi and Higham 2008 separation of amino acids from inOrganic solutes primigenius NMW24.94/140M. ultrafiltered gelatin determination 131 OxA-16601 - Paviland Cave 51.550 4.255 - - - 243700 185900 Ivory Cave - 14 C Ultra AMS 22210 160 INTCAL09 26591 335 Ice free Jacobi and Higham 2008 primigenius NMW24.94/140M. ultrafiltered gelatin determinations, 131 OxA-17559 - Paviland Cave 51.550 4.255 - - - 243700 185900 Ivory Cave - 14 C Ultra AMS 21710 120 INTCAL09 26020 195 Ice free Jacobi and Higham 2008 solvent extraction prior to collagen extraction primigenius

Page 6 of 19 Dates relating to the build up and retreat of the last British -Irish Ice Sheet. Version 2.0. Census date: 1 May 2012.

134 - - Traeth Mawr, Mynydd Illtyd 51.896 3.539 - - - 294131 223060 Organics Dead ice hollow with complete late glacial vegetation sequence - 14 C 11600 140 INTCAL09 13459 149 Retreat Start of Loch Lomond Stadial dated Walker 1982 Jones and Keen 1993

135 - - Porth Neigwl 52.800 4.537 - - - 229000 325500 Shells Shells within 'Irish Sea Till' - 14 C 29000 1200 MARINE09 33001 1176 Advance Evans et al. 2005 Evans et al. 2005; 136 Birm-212 - Glanllynnau, Lleyn Peninsula 52.910 4.307 - - - 244900 337300 Peat Sample from base of kettle hole over a complex till sequence - 14 C 14468 300 INTCAL09 17568 377 Retreat Date for melting ice on Lleyn Peninsula Coope and Brophy 1972 Knight 2001

136 Birm 276 - Glanllynnau, Lleyn Peninsula 52.910 4.307 - - - 244900 337300 Organics Sample from within basal clays, kettle hole within outwash in filled from sediments - 14 C 12556 230 INTCAL09 14656 434 Retreat Date from Organics prior to Lateglacial sequence Knight 2001

137 - - Bryncir Moraine 52.911 4.298 - - - 245500 337300 Organics Kettle hole peat overlying moraine - 14 C 10170 160 INTCAL09 11844 249 Retreat Readvance of moraine before this time Foster 1968 Evans et al. 2005 Possibility for readvance of Welsh ice into Irish sea after 137 I-2801 - Bryncir Moraine 52.911 4.298 - - - 245500 337300 Organics Within the 'Bryncir Moraine' - 14 C 16830 +970 -860 INTCAL09 20241 1007 Advance Foster 1968, 1970 Evans et al. 2005 this time 138 - - Moel Tryafaen 53.087 4.202 - - - 252518 356754 Shells On summit; i.e. infer that shells transported to summit by ice - 14 C 33740 +2100 -1800 MARINE09 38403 2139 Advance Foster 1968 139 - - Cwm Cywion 53.123 4.045 - - - 263200 360400 Mud In filled lake basin: i.e. no explicit indictaion of earlier ice cover - 14 C 13670 280 INTCAL09 16746 411 Ice free Ince 1981 Evans et al. 2005 140 OxA-111 - Kendrick's Cave 53.324 3.832 - - - 278000 382400 Bone Cave - 14 C 10100 200 INTCAL09 11667 341 Ice free Human occupation Gillespie et al.1985 CBA date list 141 OxA-1025 - Cae Gronw Cave 53.228 3.476 - - - 301500 371000 Bone Cave. Above unit containing human evidence - 14 C 29000 800 INTCAL09 33638 935 Ice free Bear, min date for end human occupation CBA date list 141 OxA-5990 - Cae Gronw Cave 53.228 3.476 - - - 301500 371000 Bone Cave - 14 C 20200 460 INTCAL09 24048 529 Unclassified Reindeer, disturbed unit - unreliable Hedges et al. 1997 CBA date list 141 OxA-6335 - Cae Gronw Cave 53.227 3.476 - - - 301500 371000 Bone Cave - 14 C 35100 1500 INTCAL09 40120 1498 Ice free Bear Hedges et al. 1997 CBA date list 142 OxA-4367 - Pontnewydd 53.228 3.485 - - - 300900 371200 Bone Within debris flow breccia, predates human occupation - 14 C 25970 330 INTCAL09 30736 260 Ice free Bear Hedges et al. 1996 CBA date list 142 OxA-4373 - Pontnewydd 53.228 3.485 - - - 300900 371200 Bone Within debris flow breccia, predates human occupation - 14 C 27070 360 INTCAL09 31344 210 Ice free Hedges et al. 1996 CBA date list 142 OxA-4372 - Pontnewydd 53.228 3.485 - - - 300900 371200 Bone Within debris flow breccia, predates human occupation - 14 C 28470 410 INTCAL09 32722 630 Ice free Hedges et al. 1996 CBA date list 142 OxA-4369 - Pontnewydd 53.228 3.485 - - - 300900 371200 Bone Within debris flow breccia, predates human occupation - 14 C 28730 420 INTCAL09 33276 718 Ice free Wolf Hedges et al. 1996 CBA date list 142 OxA-4368 - Pontnewydd 53.228 3.485 - - - 300900 371200 Bone Within debris flow breccia, predates human occupation - 14 C 28950 450 INTCAL09 33607 588 Ice free Hedges et al. 1996 CBA date list 142 OxA-4371 - Pontnewydd 53.228 3.485 - - - 300900 371200 Bone Within debris flow breccia, predates human occupation - 14 C 32870 660 INTCAL09 37475 672 Ice free Hedges et al. 1996 CBA date list 142 OxA-6267 - Pontnewydd 53.228 3.485 - - - 300900 371200 Bone Within debris flow breccia, predates human occupation - 14 C 33200 650 INTCAL09 37861 774 Ice free Hedges et al. 1996 CBA date list 142 OxA-4370 - Pontnewydd 53.228 3.485 - - - 300900 371200 Bone Within debris flow breccia, predates human occupation - 14 C 35270 860 INTCAL09 40296 919 Ice free Horse Hedges et al. 1996 CBA date list 142 OxA-1025 - Pontnewydd 53.228 3.485 - - - 300900 371200 Bone No information; presume as rest of site - 14 C 29000 800 INTCAL09 33638 935 Ice free Hedges et al. 1987 CBA date list Maximum age for glaciation OR a maximum age of a Rowlands 1971; Bowen Jones and Keen 1993; 143 Birm-146 - Tremeirchion Caves 53.240 3.371 - - - 308500 372400 Bone Cave. Woolly mammoth bone within cold climate assemblage beneath 'Irish Sea till' - 14 C 18000 +1400 -1200 INTCAL09 21439 1573 Advance readvance to 'Bodfari-Trefant' moraine 1974 Evans et al. 2005 144 - - Goats Hole Cave 53.247 3.503 - - - 299722 373321 Stalagmite Cave - U - - - 36800 4000 Ice free Stalagmite formation; large error Aldhouse-Green 2000 Bowen 2005 145 OxA-1788 - Porth-y-Waen 52.808 3.127 - - - 326500 322000 Peat - 14 C 10270 100 INTCAL09 11993 175 Ice free CBA date list 145 OxA-1950 - Porth-y-Waen 52.802 3.099 - - - 326500 322000 Bone/Antler - 14 C 11740 150 INTCAL09 13588 154 Ice free Barbed points CBA date list 145 OxA-1946 - Porth-y-Waen 52.790 3.090 - - - 326500 322000 Bone/Antler - 14 C 11390 120 INTCAL09 13255 108 Ice free Hedges et al. 1990 CBA date list 146 OxA-1455 - Condover 52.663 2.742 - - - 349500 306500 Tusk Late glacial sediments within kettle hole within limit of late Devensian ice - 14 C AMS 12400 160 INTCAL09 14473 334 Retreat Mammoth CBA date list

146 OxA-1021 - Condover 52.663 2.742 - - - 349500 306500 Bone Late glacial sediments within kettle hole within limit of late Devensian ice - 14 C 12700 160 INTCAL09 14913 351 Retreat Coope and Lister 1987 Jones and Keen 1993

146 Birm-1273 - Condover 52.663 2.742 - - - 349500 306500 Bone Late glacial sediments within kettle hole within limit of late Devensian ice - 14 C 12920 390 INTCAL09 15693 771 Retreat Coope and Lister 1987 Jones and Keen 1993

146 OxA-1591 - Condover 52.663 2.742 - - - 349500 306500 Coleoptera Late glacial sediments within kettle hole within limit of late Devensian ice - 14 C AMS 11880 130 INTCAL09 13727 149 Retreat Hedges et al. 1989 CBA date list 146 OxA-1457 - Condover 52.663 2.742 - - - 349500 306500 Coleoptera Late glacial sediments within kettle hole within limit of late Devensian ice - 14 C AMS 12080 130 INTCAL09 13931 150 Retreat Hedges et al. 1989 CBA date list 146 OxA-1316 - Condover 52.654 2.747 - - - 349500 306500 Tooth Late glacial sediments within kettle hole within limit of late Devensian ice - 14 C AMS 12300 180 INTCAL09 14297 350 Retreat Mammoth CBA date list 146 OxA-1456 - Condover 52.663 2.742 - - - 349500 306500 Tooth Late glacial sediments within kettle hole within limit of late Devensian ice - 14 C AMS 12330 120 INTCAL09 14314 290 Retreat Mammoth CBA date list 146 OxA-1458 - Condover 52.663 2.742 - - - 349500 306500 Coleoptra Late glacial sediments within kettle hole within limit of late Devensian ice - 14 C 13950 160 INTCAL09 17012 173 Retreat CBA date list 146 OxA-20129 - Condover 52.663 2.742 - - - 349500 306500 Tusk Late glacial sediments within kettle hole within limit of late Devensian ice - 14 C Ultra AMS 12230 50 INTCAL09 14078 92 Retreat Mammoth Lister 2009 146 OxA-19903 - Condover 52.663 2.742 - - - 349500 306500 Skull Late glacial sediments within kettle hole within limit of late Devensian ice - 14 C Ultra AMS 12375 50 INTCAL09 14356 211 Retreat Mammoth Lister 2009

147 Birm-149 - Church Street, Shropshire 52.624 2.792 - - - 346415 303236 Peat Rests on 'Irish Sea till' - 14 C 13555 620 INTCAL09 16282 881 Retreat Andersen et al. 1981

148 I-2939 - Buildwas, Shropshire 52.742 2.495 - - - 366553 316229 Shell Within kame complex - 14 C 31840 +1660 -1360 MARINE09 36328 1786 Advance Ice extended at least as far as Wolverhampton moraine Andersen et al. 1981

149 Birm-195 - Four Ashes 52.671 2.124 - - - 391600 308200 Organics Organic lenses within sands and gravels underlies red till with Irish Sea erratics - 14 C 30500 400 INTCAL09 34982 347 Advance Youngest date obtained Morgan 1973a Jones and Keen 1993

149 Birm-25 - Four Ashes 52.671 2.124 - - - 391600 308200 Peat Organic lenses within sands and gravels underlies red till with Irish Sea erratics - 14 C 30655 +765 -700 INTCAL09 35159 518 Advance Morgan 1973a Andersen et al. 1981

149 Birm-24 - Four Ashes 52.671 2.124 - - - 391600 308200 Peat Organic lenses within sands and gravels underlies red till with Irish Sea erratics - 14 C 36340 +770 -700 INTCAL09 41381 652 Advance Morgan 1973a Andersen et al. 1981

149 Birm-56 - Four Ashes 52.671 2.124 - - - 391600 308200 Peat Organic lenses within sands and gravels underlies red till with Irish Sea erratics - 14 C 42530 +1345 -1115 INTCAL09 45786 1190 Advance Morgan 1973a Andersen et al. 1981

149 Birm-170 - Four Ashes 52.671 2.124 - - - 391600 308200 Peat Organic lenses within sands and gravels underlies red till with Irish Sea erratics - 14 C 38500 +1200 -1050 INTCAL09 42939 883 Advance Morgan 1973a Andersen et al. 1981 No error range No error range provided so 149 Birm-74 - Four Ashes 52.671 2.124 - - - 391600 308200 Organics Organic lenses within sands and gravels underlies red till with Irish Sea erratics - 14 C >43500 - - provided so unable Advance Morgan 1973a Andersen et al. 1981 unable to to calibrate calibrate 149 Birm-196 - Four Ashes 52.671 2.124 - - - 391600 308200 Peat Organic lenses within sands and gravels underlies red till with Irish Sea erratics - 14 C 40000 +1400-1200 INTCAL09 43934 998 Advance Morgan 1973a Andersen et al. 1981 No error range No error range provided so 149 Birm-171 - Four Ashes 52.671 2.124 - - - 391600 308200 Wood Organic lenses within sands and gravels underlies red till with Irish Sea erratics - 14 C >45000 - - provided so unable Advance Morgan 1973a Andersen et al. 1981 unable to to calibrate calibrate Morgan 1973b; Shotton 150 Birm-92 - Rodbaston 52.698 2.114 - - - 392290 311140 Peat - 14 C 10300 170 INTCAL09 12108 303 Ice free Jones and Keen 1993 and Strachan 1959

150 Y-464 - Rodbaston 52.698 2.114 - - - 392290 311140 Peat Overlies till - 14 C 10670 130 INTCAL09 12608 95 Retreat Morgan 1973b Jones and Keen 1993

151 Birm-131 - Pillaton Hall 52.714 2.087 - - - 394100 313000 Peat Above coarse sand and overlies till - 14 C 11660 250 INTCAL09 13529 239 Retreat Morgan 1973b Jones and Keen 1993

152 Birm-118 - Penkridge 52.726 2.112 - - - 392400 314300 Organics Within gravels, overlies till - 14 C 11580 140 INTCAL09 13444 149 Retreat Morgan 1973b Jones and Keen 1993

153 Birm-150 - Stafford 52.889 2.110 - - - 392600 332400 Organics Basal Organic deposits in a depression in glaciofluvial gravel; overlies till - 14 C 13490 375 INTCAL09 16392 551 Retreat Morgan 1973b Jones and Keen 1993

153 WAT-255 - Stafford 52.889 2.110 - - - 392600 332400 Organics Basal Organic deposits in a depression in glaciofluvial gravel - 14 C 13250 300 INTCAL09 16137 556 Retreat Bartley and Morgan 1990 Jones and Keen 1993

154 OxA-811 - Elderbush Cave 53.090 1.855 - - - 409700 354800 - Cave - 14 C 10600 110 INTCAL09 12524 117 Ice free Gowlett et al. 1986 CBA date list Below 'Stockport Formation' (till and glaciofluvial sediments associated with advance of ice 155 - - Chelford 53.091 2.198 - - - 386729 354948 Sand - OSL - - - 27000 2000 Advance Bateman Pers. Com from Irish Sea) 156 GrN-7400 - Ossom's Cave 53.097 1.857 - - - 409600 355600 Bone Cave - 14 C 10590 70 INTCAL09 12564 44 Ice free Human occupation CBA date list 156 OxA-632 - Ossom's Cave 53.098 1.857 - - - 409600 355600 Antler Cave - 14 C 10600 140 INTCAL09 12524 145 Ice free Human occupation CBA date list 156 OxA-631 - Ossom's Cave 53.098 1.857 - - - 409600 355600 Bone Cave - 14 C 10780 160 INTCAL09 12717 160 Ice free Human occupation CBA date list 157 OxA-1493 - Fox Hole 53.192 1.851 - - - 409970 366180 Antler Cave - 14 C 11970 120 INTCAL09 13838 137 Ice free Artefact. Human occupation Hedges et al. 1989 CBA date list 158 OxA-1463 - Dowel Cave 53.205 1.886 - - - 407600 367600 Antler Cave - 14 C 11200 120 INTCAL09 13086 143 Ice free Artefact. Human occupation Hedges et al. 1989 CBA date list Marine fauna within 'Stockport Formation' (till and glaciofluvial sediments associated with 159 I-1667 - Stockport 53.304 2.278 - - - 381495 378595 Shell - 14 C 28000 1800 MARINE09 32386 1740 Advance Andersen et al. 1981 advance of ice from Irish Sea) 160 - - Pentney 52.688 - 0.526 - - 570700 313100 Moss Within sands and gravels - 14 C 21000 1000 INTCAL09 25085 1245 Advance Ventris 1985 Bowen 1999

161 - - Tattershall 53.097 0.191 - - - 521100 357100 Organics Within sands and gravel - 14 C 42100 +1400 -1100 INTCAL09 45450 1153 Advance Girling 1974 Jones and Keen 1993

161 - - Tattershall 53.097 0.191 - - - 521100 357100 Organics Within sands and gravel - 14 C 44200 +1600 -1300 INTCAL09 47454 1458 Advance Girling 1974 Jones and Keen 1993

161 - - Tattershall Castle 53.097 0.191 - - - 521100 357100 Sand Sand and gravel with silts within channel infill - TL - - - 21000 8500 Unclassified Very large error so almost meaningless Perkins and Rhodes 1994 Bowen 1999

162 Q279 - Aby Grange 53.295 -0.159 - - - 543900 379800 Peat Basal peat in a kettle hole - 14 C 11205 120 INTCAL09 13092 143 Retreat Minimum age for Hogsthorpe moraine Suggate and West 1959 Evans et al. 2005 163 - - Cove Farm 53.493 0.825 - - - 448009 400128 Sand Sand below clay - OSL - - - 14200 2800 Unclassified Overestimates due to incomplete resetting Bateman et al. 2001 163 - - Cove Farm 53.493 0.825 - - - 448009 400128 Sand Basal sand - OSL - - - 14100 2100 Unclassified Overestimates due to incomplete resetting Bateman et al. 2001 163 - - Cove Farm 53.493 0.825 - - - 448009 400128 Wood Organic unit - 14 C 11760 150 INTCAL09 13601 155 Ice free Drainage event of Lake Humber Bateman et al. 2001 164 - Bwn4 Black Walk Nook 53.517 0.617 - - - 491672 403149 Sand Base of coversand deposit, overlying peat: i.e. no explicit indictaion of earlier ice cover - TL - - - 12930 1240 Ice free Quartz Bateman 1995 Base of coversand deposit, overlying peat and sand and gravels: i.e. no explicit indictaion of 165 - Con4 Conesby Quarry 53.517 0.633 - - - 490611 403150 Sand - TL - - - 11080 940 Ice free Quartz Bateman 1995 earlier ice cover

Page 7 of 19 Dates relating to the build up and retreat of the last British -Irish Ice Sheet. Version 2.0. Census date: 1 May 2012.

166 Birm 707 - Messingham 53.523 0.623 - - - 491300 403800 Organics Organic material - 14 C 10550 250 INTCAL09 12360 326 Ice free Buckland 1982 Jones and Keen 1993

166 Birm-349 - Messingham 53.523 0.623 - - - 491300 403800 Peat Peat below cover sands - 14 C 10280 120 INTCAL09 12084 139 Ice free Buckland 1976 Jones and Keen 1993

Buried soil (palaeosol) on laminated clay interpreted as lacustrine sediment; underlying Minimum age for disappearance/emptying of lake Jones and Keen 1993; 167 N-810 - West Moor 53.557 1.021 - - - 464840 407180 Soil - 14 C 11110 200 INTCAL09 12965 203 Ice free Gaunt et al. 1971 coversand: i.e. no explicit indictaion of earlier ice cover Humber Evans et al. 2005 168 - Shfd02012 Ferrybridge 53.711 1.282 - - - 447441 424178 Sand Lake beach sediment overlies till - OSL - - - 16600 1200 Retreat Date for high stand phase of Lake Humber Bateman et al. 2008 168 - Shfd02014 Ferrybridge 53.711 1.282 - - - 447441 424178 Sand Above till and beneath lake beach - OSL - - - 20500 1200 Retreat Maximum age for high stand Lake Humber Bateman et al. 2008 168 - Shfd02013 Ferrybridge 53.711 1.282 - - - 447441 424178 Sand Beneath diamict interpreted as till - OSL - - - 23300 1500 Advance Advance down Vale of York Bateman et al. 2008

169 - - River Aire 53.718 0.813 - - - 478356 425258 Bone Remains from silt above sands and gravel: i.e. no explicit indictaion of earlier ice cover - 14 C 38600 +1720 -1420 INTCAL09 43042 1263 Ice free Approximate location, mammoth Gaunt et al. 1970 Jones and Keen 1993

Glacier overrode area after this time; max age for onset of Penny et al. 1969; Catt Jones and Keen 1993; 170 Birm-108 - Dimlington, Holderness 53.673 - 0.109 - - 539300 421700 Organics Between basement and skipsea tills - 14 C 18240 250 INTCAL09 21800 302 Retreat; Advance Dimlington stadial 1987 Evans et al. 2005

Penny et al. 1969; Catt Jones and Keen 1993; 170 I-3372 - Dimlington, Holderness 53.673 - 0.109 - - 539300 421700 Organics Between basement and skipsea tills - 14 C 18500 400 INTCAL09 21980 465 Retreat; Advance 1987 Evans et al. 2005

170 Shfd07115 Dimlington 53.673 - 0.104 - - 539086 421670 Sand Sands between Withernsea and Skipsea Tills OSL 14400 800 Retreat; Advance Bateman et al. 2011

170 Shfd07116 Dimlington 53.673 - 0.104 - - 539086 421670 Sand Sands between Withernsea and Skipsea Tills OSL 15700 900 Retreat; Advance Bateman et al. 2011

170 Shfd07114 Dimlington 53.673 - 0.104 - - 539086 421670 Sand Sands between Withernsea and Skipsea Tills OSL 16500 900 Retreat; Advance Bateman et al. 2011

170 Shfd07113 Dimlington 53.673 - 0.104 - - 539086 421670 Sand Sands between Withernsea and Skipsea Tills OSL 16500 900 Retreat; Advance Bateman et al. 2011

170 Shfd07115 Dimlington 53.673 - 0.104 - - 539086 421670 Sand Sands between Withernsea and Skipsea Tills OSL single grain 14600 800 Retreat; Advance Bateman et al. 2011

170 Shfd07116 Dimlington 53.673 - 0.104 - - 539086 421670 Sand Sands between Withernsea and Skipsea Tills OSL single grain 16300 900 Retreat; Advance Bateman et al. 2011

170 Shfd07114 Dimlington 53.673 - 0.104 - - 539086 421670 Sand Sands between Withernsea and Skipsea Tills OSL single grain 16900 900 Retreat; Advance Bateman et al. 2011

170 Shfd07113 Dimlington 53.673 - 0.104 - - 539086 421670 Sand Sands between Withernsea and Skipsea Tills OSL single grain 15700 900 Retreat; Advance Bateman et al. 2011

171 Birm-317 - Roos 53.740 0.068 - - - 527400 428800 Peat Organics from kettle hole - 14 C 13045 270 INTCAL09 15771 560 Retreat Beckett 1981 Evans et al. 2005 172 St-3903 - Brantingham 53.750 0.577 - - - 493850 429180 Bone In or at the base of lacustrine sediments - 14 C 21835 1600 INTCAL09 26210 1905 Margin Maximum age for 'Lake Humber 1' Gaunt 1974 1976 Evans et al. 2005 173 - - Eppleworth 53.787 0.518 - - - 497644 433295 Loess Solifluction deposit below 'Drab' till incorporates loess - TL - - - 17500 1600 Advance Reassessment of originally derived age below Wintle and Catt 1985 Jones and Keen 1993 174 - - Wolds dip slope 53.786 0.493 - - - 499251 433295 Sand Beneath 'Skipsea till' - TL - - - 16600 1700 Advance Wintle and Catt 1985 Evans et al. 2005 Low level phase of 'Lake Humber'; presence of lake 175 - HEMA01 Hemmingbrough 53.777 0.979 - - - 467400 431700 Silt Wave rippled sand beds - OSL - - - 21900 2000 Margin Murton et al. 2009 necessitates close proximity of ice margin Low level phase of 'Lake Humber'; presence of lake 175 - HEMA02 Hemmingbrough 53.777 0.979 - - - 467400 431700 Silt Wave rippled sand beds - OSL - - - 21000 1900 Margin Murton et al. 2009 necessitates close proximity of ice margin Low level phase of 'Lake Humber'; presence of lake 175 - HEMA03 Hemmingbrough 53.777 0.979 - - - 467400 431700 Silt Wave rippled sand beds - OSL - - - 24100 2200 Margin Murton et al. 2009 necessitates close proximity of ice margin

176 - - Selby 53.826 1.117 - - - 458130 437020 Peat Peat above levee sand: i.e. no explicit indictaion of earlier ice cover - 14 C 10469 60 INTCAL09 12463 85 Ice free Jones and Gaunt 1976 Jones and Keen 1993 Low level phase of 'Lake Humber'; possible incomplete 177 - GLAD01 Glade Farm 53.854 1.056 - - - 462200 440200 Sand Thick sand unit - OSL - - - 105300 10200 Unclassified Murton et al. 2009 bleaching Grasses, sedges and dwarf shrubs flora within peat below coversand: i.e. no explicit 178 Hv-4710 - Clieves Hills 53.565 2.927 - - - 338600 408000 Pollen - 14 C 10455 100 INTCAL09 12457 85 Ice free Date for deposition of 'Shirdley Hill Sand' Tooley and Kear 1977 Jones and Keen 1993 indictaion of earlier ice cover Lake deposits containing coleoptera assemblages: i.e. no explicit indictaion of earlier ice Ashworth 1972; Coope 179 Birm-127 - Red Moss 53.587 2.556 - - - 363200 410200 Organics - 14 C 12160 140 INTCAL09 14007 215 Ice free Jones and Keen 1993 cover 1977 180 - - Mere Sands Wood 53.637 2.837 - - - 344667 415986 Sand Shirdley Hill sand' , post dates glacial deposits - TL - - - 12860 1690 Retreat Bateman 1995 Thomas et al. 2004 180 - Mere1 Mere Sands Wood 53.633 2.833 - - - 415487 345015 Sand Coversand below peat layer; feldspar: i.e. no explicit indictaion of earlier ice cover - TL - - - 13110 1530 Ice free Bateman 1995

180 - Mere1 Mere Sands Wood 53.633 2.833 - - - 415487 345015 Sand Coversand below peat layer; quartz: i.e. no explicit indictaion of earlier ice cover - TL - - - 11730 1510 Ice free Bateman 1995

181 OxA-150 - Poulton-le-Flyde 53.842 3.017 - - - 333091 438646 Bone - 14 C 12400 300 INTCAL09 14512 488 Ice free Elk Jacobi et al. 1986 Jones and Keen 1993

181 OxA-151 - Poulton-le-Flyde 53.842 3.017 - - - 333091 438646 Bone - 14 C 21250 250 INTCAL09 25401 355 Unclassified Elk, anomalously old, discarded from analysis as unreliable Gillespie et al. 1985 CBA date list

181 St-3836 - Poulton-le-Flyde 53.840 3.017 - - - 333091 438646 Lake mud - 14 C 11665 140 INTCAL09 13527 150 Ice free Hallam et al. 1973 Jones and Keen 1993

181 St-3832 - Poulton-le-Flyde 53.840 3.017 - - - 333091 438646 Lake mud - 14 C 12200 160 INTCAL09 14040 214 Ice free Hallam et al. 1973 Jones and Keen 1993 Base of sediments within closed karstic depression (doline), overlain by early-mid Holocene Deposition process unknown, but interpreted as 182 OxL-1802 - New Close 54.007 2.136 - - - 391100 464500 Silt 365 OSL - - - 16500 1700 Ice free Telfer et al. 2009 silts deposited on ice free ground, large errors 183 OxA-2607 - Victoria Cave 54.080 2.248 - - - 383800 465000 Antler Cave. Rests directly on glacial deposits - 14 C 10810 100 INTCAL09 12690 97 Retreat Hedges et al. 1992 CBA date list 183 OxA-2454 - Victoria Cave 54.080 2.248 - - - 383800 465000 Bone Cave. Rests directly on glacial deposits - 14 C 10970 120 INTCAL09 12828 138 Retreat Reindeer Hedges et al. 1992 CBA date list 183 OxA-2457 - Victoria Cave 54.080 2.248 - - - 383800 465000 Bone Cave. Rests directly on glacial deposits - 14 C 11590 130 INTCAL09 13449 141 Retreat Hedges et al. 1992 CBA date list 183 OxA-2453 - Victoria Cave 54.080 2.248 - - - 383800 465000 Antler Cave - 14 C 10220 110 INTCAL09 11920 220 Ice free Hedges et al. 1992 CBA date list 183 OxA-2455 - Victoria Cave 54.080 2.248 - - - 383800 465000 Antler Cave - 14 C 11750 120 INTCAL09 13595 134 Ice free Hedges et al. 1992 CBA date list 184 OxA-2456 - Kinsey Cave 54.087 2.300 - - - 380400 465690 Antler Cave - 14 C 11270 110 INTCAL09 13186 113 Ice free Reindeer Hedges et al. 1992 CBA date list Base of sediments within closed karstic depression (doline), overlain by early-mid Holocene Deposition process unknown, but interpreted as 185 OxL-1790 - Dowkabottom 54.117 2.071 - - - 395400 469000 Silt 103 OSL - - - 27800 2600 Ice free Telfer et al. 2009 silts: i.e. no explicit indictaion of earlier ice cover deposited on ice free ground, large errors Base of sediments within closed karstic depression (doline), overlain by early-mid Holocene Deposition process unknown, but interpreted as 185 OxL-1789 - Dowkabottom 54.117 2.071 - - - 395400 469000 Silt 103 OSL - - - 27200 2600 Ice free Telfer et al. 2009 silts: i.e. no explicit indictaion of earlier ice cover deposited on ice free ground, large errors 186 OxA-2847 - Coniston Dib Cave 54.111 2.014 - - - 399100 468400 Bone Cave - 14 C 11210 90 INTCAL09 13142 90 Ice free Human occupation Hedges et al. 1992 CBA date list Base of sediments within closed karstic depression (doline), overlain by early-mid Holocene Deposition process unknown, but interpreted as 187 OxL-1806 - Warton Crag 54.147 2.775 - - - 349400 472600 Silt 365 OSL - - - 19300 2600 Ice free Telfer et al. 2009 silts deposited on ice free ground, large errors

188 - - York 54.067 1.073 - - - 460675 463835 Organics Above blown sand: i.e. no explicit indictaion of earlier ice cover - 14 C 9950 80 INTCAL09 11330 82 Ice free Matthews 1970 Jones and Keen 1993

188 - - York 54.067 1.073 - - - 460675 463835 Peat Peat from lower part of blown sand: i.e. no explicit indictaion of earlier ice cover - 14 C 10700 190 INTCAL09 12627 234 Ice free Matthews 1970 Jones and Keen 1993

189 OxA-3492 - West Heslerton 54.168 0.590 - - - 492050 475650 Organics - 14 C 25800 500 INTCAL09 30635 413 Ice free Hedges et al. 1994 CBA date list 189 OxA-3393 - West Heslerton 54.168 0.590 - - - 492050 475650 Charcoal - 14 C 33700 1000 INTCAL09 38318 1261 Ice free CBA date list 190 CAR-1027 - Seamer Carr 54.216 0.414 - - - 502800 480900 Peat Post dates shoreline of glacial lake - 14 C 10950 90 INTCAL09 12806 120 Ice free CBA date list 190 CAR-1021 - Seamer Carr 54.213 0.423 - - - 502800 480900 Peat Post dates shoreline of glacial lake - 14 C 11010 120 INTCAL09 12868 117 Ice free CBA date list

190 Q-66 - Seamer Carr 54.213 0.423 - - - 502800 480900 Organics Human occupation: i.e. no explicit indictaion of earlier ice cover - 14 C 10413 210 INTCAL09 12276 302 Ice free Godwin and Willis 1959 CBA date list

191 SRR-146 - Seamer Carrs 54.480 1.250 - - - 448600 509700 Pollen Birch pollen peak above glacial sand and gravel - 14 C 13042 140 INTCAL09 15671 432 Retreat Jones 1976 Jones and Keen 1993

Minimum age for deglaciation on northern slopes of 192 - - Kildale Hall 54.479 1.060 - - - 460900 509700 Organics Kettle hole in outwash on basal organic material - 14 C 16713 340 INTCAL09 19874 345 Unclassified Jones 1977 Jones and Keen 1993 Cleveland Hills. Possibly contaminated.

193 - - Neasham 54.484 1.475 - - - 434000 510000 Bone Elk skeleton embedded in peat overlying boulder clay - 14 C 10851 630 INTCAL09 12602 790 Retreat Blackburn 1952 Jones and Keen 1993 Buried under clay and silt in postglacial hollow. Directly overlies youngest glacial deposits in Harkness and Wilson 194 SRR-619 - Eston Beacon 54.567 1.117 - - - 456590 518910 Peat - 14 C 11510 70 MARINE09 13006 100 Retreat Tees Valley 1979 Glaciofluvial Assume glaciofluvial sediments deposited close to 195 OR14 - Orrisdale 54.310 4.580 - - - 232287 493542 - OSL - - - 14100 2600 Margin Thrasher et al. 2009 sediments retreating ice margin Glaciofluvial Assume glaciofluvial sediments deposited close to 195 OR14 - Orrisdale 54.310 4.580 - - - 232287 493542 - OSL - - - 14400 2500 Margin Thrasher et al. 2009 sediments retreating ice margin Glaciofluvial Assume glaciofluvial sediments deposited close to 195 OR15 - Orrisdale 54.310 4.580 - - - 232287 493542 - OSL - - - 14200 2500 Margin Thrasher et al. 2009 sediments retreating ice margin Glaciofluvial Assume glaciofluvial sediments deposited close to 195 OR22 - Orrisdale 54.310 4.580 - - - 232287 493542 - OSL - - - 16400 3400 Margin Thrasher et al. 2009 sediments retreating ice margin Glaciofluvial Assume glaciofluvial sediments deposited close to 195 OR22 - Orrisdale 54.310 4.580 - - - 232287 493542 - OSL - - - 15000 2900 Margin Thrasher et al. 2009 sediments retreating ice margin Glaciofluvial Assume glaciofluvial sediments deposited close to 195 OR26 - Orrisdale 54.310 4.580 - - - 232287 493542 - OSL - - - 25900 5000 Margin Thrasher et al. 2009 sediments retreating ice margin Overlying 'Jurby Formation' (laminated and massive muds, sand, gravels and diamicts), from Possible contamination. Knight (2001) lists location as Thomas et al. 2004; 196 Birm 754 - Glen Ballliera, Isle of Man 54.326 4.563 - - - 233331 495277 Organics / Peat - 14 C 15150 350 INTCAL09 18332 355 Unclassified Knight 2001 base of kettle hole Jurby Head. Tooley 1977 196 Birm 270b - Glen Ballliera, Isle of Man 54.326 4.563 - - - 233331 495277 Moss Overlying 'Orrisdale Formation' (diamicts, sands and gravels, and muds) - 14 C 18550 185 INTCAL09 22117 270 Unclassified Possible hard water error as for sample below. Thomas et al. 2004 196 Birm-270a - Glen Ballliera, Isle of Man 54.326 4.563 - - - 233331 495277 Moss Overlying 'Orrisdale Formation' (diamicts, sands and gravels, and muds) - 14 C 18700 500 INTCAL09 22125 570 Retreat Thomas et al. 2004 196 SUERC 3037 - Glen Ballliera, Isle of Man 54.326 4.563 - - - 233331 495277 Plant macro Within kettle hole - 14 C AMS 12492 95 INTCAL09 14696 228 Retreat Most recent date regarded as reliable Roberts et al. 2006 Possible hard water contamination; discarded from Shotton and Williams Jones and Keen 1993; 196 Birm-213 - Glen Ballliera, Isle of Man 54.327 4.561 - - - 233331 495277 Moss Sample from base of kettle hole located above calcareous till - 14 C 18900 330 INTCAL09 22596 409 Unclassified analysis as unreliable 1971, 1973 Evans et al. 2005

Page 8 of 19 Dates relating to the build up and retreat of the last British -Irish Ice Sheet. Version 2.0. Census date: 1 May 2012.

198 Birm 378 - St Bees 54.488 3.598 - - - 296500 511500 Wood On 'St Bees moraine' - 14 C 12560 170 INTCAL09 14775 308 Retreat Considered reliable Coope and Joachim 1980 Knight 2001 Likely hard water effect discarded from analysis as 198 Birm 690 - St Bees 54.488 3.598 - - - 296500 511500 Organics - 14 C 13290 310 INTCAL09 16177 557 Unclassified Coope and Joachim 1980 Knight 2001 unreliable

199 Q-758B - Blelham Tarn 54.396 2.976 - - - 336666 500527 Organics Below sediments attributed to Younger Dryas, on top of clay within kettle hole - 14 C 14280 230 INTCAL09 17361 291 Retreat Andersen et al. 1981

199 Q-758A - Blelham Tarn 54.398 2.981 - - - 336319 500686 Organics Organics at base of kettle hole - 14 C 14330 230 INTCAL09 17416 299 Retreat Pennington 1977 Knight 2001 Littoral sediments of lake. Organics within silt above laminated clay: i.e. no explicit Coope and Pennington 200 SRR 682 - Low Wray Bay, Lake Windermere 54.403 2.957 - - - 337852 501327 Organics - 14 C 14623 360 INTCAL09 17727 351 Ice free Evans et al. 2005 indictaion of earlier ice cover 1977

200 SRR 681 - Lake Windermere 54.404 2.957 - - - 337861 501333 Organics Earliest organic matter in lake basin: i.e. no explicit indictaion of earlier ice cover - 14 C 14557 280 INTCAL09 17628 383 Ice free Pennington 1977 Knight 2001 Exposure time 201 - LD-05 Scafell Pike 54.453 3.211 - - - 321600 507100 Tor Tor summit above local weathering limit. 960 CN 36 Cl - - - 328000 37000 Ballantyne et al. 2009a (cumulative) Exposure time 201 - LD-06 Scafell Pike 54.453 3.211 - - - 321600 507100 Tor Tor summit above local weathering limit. 965 CN 36 Cl - - - 110000 6000 Ballantyne et al. 2009a (cumulative) Insufficient erosion inferred suggesting nuclide 202 - LD-02 Broad Stand 54.452 3.215 - - - 321200 506900 Bedrock Below inferred weathering limit. 795 CN 36 Cl - - - 76400 5200 Unclassified Ballantyne et al. 2009a inheritance Insufficient erosion inferred suggesting nuclide 202 - LD-03 Broad Stand 54.450 3.218 - - - 321200 506800 Bedrock Below inferred weathering limit. 775 CN 36 Cl - - - 29200 2100 Unclassified Ballantyne et al. 2009a inheritance

203 - LD-07 Lingmell 54.458 3.219 - - - 321100 507700 Bedrock Ice moulded col below inferred weathering limit 765 CN 36 Cl - - - 13200 2000 Retreat Ballantyne et al. 2009a

203 - LD-08 Lingmell 54.459 3.219 - - - 321100 507800 Bedrock Ice moulded col below inferred weathering limit 750 CN 36 Cl - - - 17300 1100 Retreat Ballantyne et al. 2009a

204 - LD-12 Wasdale 54.443 3.303 - - - 315500 506100 Bedrock Valley level roche moutonnée; nuclide inheritance possible 125 CN 36 Cl - - - 20000 1400 Unclassified Nuclide inheritance possible Ballantyne et al. 2009a

204 - LD-17 Wasdale 54.443 3.303 - - - 315500 506100 Bedrock Valley level roche moutonnée; nuclide inheritance possible 125 CN 36 Cl - - - 50000 3500 Unclassified Nuclide inheritance possible Ballantyne et al. 2009a Exposure time 205 - LD-09 West of Scarfell Pike 54.456 3.228 - - - 320500 507400 Boulder Glacially transported boulders within limit of later corrie glaciation 595 CN 36 Cl - - - 35100 2300 Presumed inheritance Ballantyne et al. 2009a (cumulative)

205 - LD-10 West of Scarfell Pike 54.455 3.228 - - - 320500 507300 Boulder Glacially transported boulders within limit of later corrie glaciation 595 CN 36 Cl - - - 12500 800 Retreat Ballantyne et al. 2009a

206 - - Scandal Beck 54.438 2.379 - - - 375400 504861 Organics Underlying boulder clay - 14 C 36300 +2100 -1700 INTCAL09 40866 1928 Advance Shotton et al. 1970 Outside calibration Outside 207 I-2135 - Berwick 55.772 2.029 - - - 398200 653200 Shells Gravel layer underlying till - 14 C >41100 - - Unclassified Maximum radiocarbon date so excluded from analysis Sissons 1967 range calibration range

208 Q 816 - Redkirk Point 54.977 3.094 - - - 330000 565300 Peat Basal peat - 14 C 12290 250 INTCAL09 14292 379 Ice free Bishop and Coope 1977 Knight 2001 Shotton and Williams 209 Birm-362 - Stranraer 54.886 4.964 - - - 209928 558669 Shell Transported or overridden by ice - 14 C 28940 +850 -770 MARINE09 32873 1028 Advance Outer shell Sutherland 1986 1973 No error range No error range provided so Shotton and Williams 209 Birm-363 - Stranraer 54.886 4.964 - - - 209928 558669 Shell Transported or overridden by ice - 14 C >32900 - - provided so unable Unclassified Middle shell Sutherland 1986 unable to 1973 to calibrate calibrate No error range No error range provided so Shotton and Williams 209 Birm-364 - Stranraer 54.886 4.964 - - - 209928 558669 Shell Transported or overridden by ice - 14 C >36900 - - provided so unable Unclassified Inner shell Sutherland 1986 unable to 1973 to calibrate calibrate 210 SRR-3023 - Sourlie 55.638 4.642 - - - 233800 641390 Antler Overlain by till and underlain by till - 14 C 29900 +430 -410 INTCAL09 34508 464 Retreat; Advance Jardine et al. 1988

210 SRR-3146 - Sourlie 55.638 4.644 - - - 233650 641470 Plant Overlain by till and underlain by till - 14 C 29290 350 INTCAL09 34019 463 Retreat; Advance Jardine et al. 1988

210 SRR-3147 - Sourlie 55.638 4.644 - - - 233650 641470 Organic Silt Overlain by till and underlain by till - 14 C 30230 280 INTCAL09 34816 177 Retreat; Advance Jardine et al. 1988

210 SRR-3148 - Sourlie 55.641 4.645 - - - 233650 641743 Organic Silt Overlain by till and underlain by till - 14 C 33270 370 INTCAL09 38038 551 Retreat; Advance Jardine et al. 1988

Elephant/reindeer used to support Perth readvance, 211 GX-0634 - Kilmaurs 55.637 4.526 - - - 241000 641000 Tusk/Antler Bed of clay underlying a till and an arctic shell bed - 14 C 13700 +1300 -1700 INTCAL09 16334 1706 Advance regarded as unreliable as second date from deposits gave Gregory and Currie 1928 Sissons 1967 a date of >40,000 (Sissons 1981)

212 Q 643 - Roberthill 55.651 4.811 - - - 223176 643249 Wood Sample within basal peat overlying gravel: i.e. no explicit indictaion of earlier ice cover - 14 C 12940 250 INTCAL09 15654 566 Ice free Bishop and Coope 1977 Knight 2001

213 SUERC-13122 - West of Islay 55.767 5.970 - - - 150639 659913 Shell Borehole 75/40 22 m depth marine sediments overlying till - 14 C AMS 13103 40 MARINE09 15053 129 Retreat Peacock 2008 Borehole 75/43 18 m depth base of unit containing fauna interpreted as Windermere 214 SUERC-13123 - Loch Indaal 55.688 6.417 - - - 122360 652691 Shell - 14 C AMS 13054 39 MARINE09 15012 152 Ice free Peacock 2008 Interstadial age 214 SUERC-13124 - Loch Indaal 55.688 6.417 - - - 122360 652691 Shell Borehole 75/43 21-22 m depth at top of unit overlying diamicton unit - 14 C AMS 13120 39 MARINE09 15068 128 Retreat Peacock 2008 Support MIS 4 Ice margin on Islay and possibility of ice 215 RHI14 - Kilcohman, Islay 55.784 6.443 - - - 121500 663500 Sand Clay sediments +70 m OD glaciomarine sediments with no evidence of overriding - TL - - - 41400 +4500 -4300 Ice free Dawson et al. 1997 free enclave in Late Devensian Support MIS 4 Ice margin on Islay and possibility of ice 215 RHI11 - Kilcohman, Islay 55.784 6.443 - - - 121500 663500 Sand Clay sediments +70 m OD glaciomarine sediments with no evidence of overriding - TL - - - 51400 +5700 -5500 Ice free Dawson et al. 1997 free enclave in Late Devensian Support MIS 4 Ice margin on Islay and possibility of ice 215 GLM53 - Kilcohman, Islay 55.784 6.443 - - - 121500 663500 Sand Clay sediments +70 m OD glaciomarine sediments with no evidence of overriding - TL - - - 53900 +6300 -5900 Ice free Dawson et al. 1997 free enclave in Late Devensian 216 OxA-1697 - Lochgilphead 56.065 5.504 - - - 181900 691300 Shell Marine bed deposited during Windermere Interstadial - 14 C 12830 120 MARINE09 14481 303 Ice free Hedges et al. 1989 CBA date list 216 OxA-1698 - Lochgilphead 56.065 5.504 - - - 181900 691300 Shell Marine bed deposited during Windermere Interstadial - 14 C 13020 130 MARINE09 14849 303 Ice free Hedges et al. 1989 CBA date list Harkness and Wilson 216 SRR-63 - Lochgilphead 56.065 5.504 - - - 181900 691300 Shell Undisturbed by glacial action - 14 C 12750 90 MARINE09 14319 254 Ice free Sutherland 1986 1974; Peacock et al 1977

Harkness and Wilson 216 SRR-364 - Lochgilphead 56.065 5.504 - - - 181900 691300 Shell Undisturbed by glacial action - 14 C 11690 130 MARINE09 13195 125 Ice free Outer shell Sutherland 1986 1979; Peacock et al 1977

Harkness and Wilson 216 SRR-364 - Lochgilphead 56.065 5.504 - - - 181900 691300 Shell Undisturbed by glacial action - 14 C 11390 110 MARINE09 12840 128 Ice free Inner shell Sutherland 1986 1979; Peacock et al 1977

Harkness and Wilson 216 SRR-365 - Lochgilphead 56.065 5.504 - - - 181900 691300 Shell Undisturbed by glacial action - 14 C 12110 130 MARINE09 13562 141 Ice free Outer shell Sutherland 1986 1979; Peacock et al 1977

Harkness and Wilson 216 SRR-365 - Lochgilphead 56.065 5.504 - - - 181900 691300 Shell Undisturbed by glacial action - 14 C 11730 140 MARINE09 13222 132 Ice free Inner shell Sutherland 1986 1979; Peacock et al 1977

Harkness and Wilson 216 SRR-366 - Lochgilphead 56.065 5.504 - - - 181900 691300 Shell Undisturbed by glacial action - 14 C 11390 120 MARINE09 12841 129 Ice free Outer shell Sutherland 1986 1979; Peacock et al 1977

Harkness and Wilson 216 SRR-366 - Lochgilphead 56.065 5.504 - - - 181900 691300 Shell Undisturbed by glacial action - 14 C 11690 130 MARINE09 13195 125 Ice free Inner shell Sutherland 1986 1979; Peacock et al 1977

Harkness and Wilson 216 SRR-367 - Lochgilphead 56.065 5.504 - - - 181900 691300 Shell Undisturbed by glacial action - 14 C 12490 190 MARINE09 13944 280 Ice free Sutherland 1986 1979; Peacock et al 1977

Harkness and Wilson 216 SRR-368 - Lochgilphead 56.065 5.504 - - - 181900 691300 Shell Undisturbed by glacial action - 14 C 13620 90 MARINE09 16208 343 Ice free Outer shell Sutherland 1986 1979; Peacock et al 1977

Harkness and Wilson 216 SRR-368 - Lochgilphead 56.065 5.504 - - - 181900 691300 Shell Undisturbed by glacial action - 14 C 13190 85 MARINE09 15128 146 Ice free Inner shell Sutherland 1986 1979; Peacock et al 1977

Harkness and Wilson 216 SRR-369 - Lochgilphead 56.065 5.504 - - - 181900 691300 Shell Undisturbed by glacial action - 14 C 13140 90 MARINE09 15072 184 Ice free Outer shell Sutherland 1986 1979; Peacock et al 1977

Harkness and Wilson 216 SRR-369 - Lochgilphead 56.065 5.504 - - - 181900 691300 Shell Undisturbed by glacial action - 14 C 12650 110 MARINE09 14085 166 Ice free Inner shell Sutherland 1986 1979; Peacock et al 1977

Harkness and Wilson 216 SRR-489 - Lochgilphead 56.065 5.504 - - - 181900 691300 Shell Undisturbed by glacial action - 14 C 12510 60 MARINE09 13943 83 Ice free Outer shell Sutherland 1986 1979; Peacock et al 1977

Harkness and Wilson 216 SRR-489 - Lochgilphead 56.065 5.504 - - - 181900 691300 Shell Undisturbed by glacial action - 14 C 12590 70 MARINE09 14031 105 Ice free Inner shell Sutherland 1986 1979; Peacock et al 1977 Harkness and Wilson 217 SRR831 - Portavadie 55.900 5.300 - - - 192700 669500 Shell Undisturbed by glacial action - 14 C 10830 150 MARINE09 12251 173 Ice free Outer shell Sutherland 1986 1979

Page 9 of 19 Dates relating to the build up and retreat of the last British -Irish Ice Sheet. Version 2.0. Census date: 1 May 2012.

Harkness and Wilson 218 SRR-481 - Ardyne Point 55.867 5.067 - - - 208114 668008 Shell Undisturbed by glacial action - 14 C 11680 170 MARINE09 13138 178 Ice free Inner shell Sutherland 1986 1979; Peacock et al 1978

Harkness and Wilson 218 SRR-482 - Ardyne Point 55.867 5.067 - - - 208114 668008 Shell Undisturbed by glacial action - 14 C 12650 70 MARINE09 14087 149 Ice free Outer shell Sutherland 1986 1979; Peacock et al 1978

Harkness and Wilson 218 SRR-482 - Ardyne Point 55.867 5.067 - - - 208114 668008 Shell Undisturbed by glacial action - 14 C 12380 90 MARINE09 13839 102 Ice free Inner shell Sutherland 1986 1979; Peacock et al 1978

Harkness and Wilson 218 SRR-483 - Ardyne Point 55.867 5.067 - - - 208114 668008 Shell Undisturbed by glacial action - 14 C 11470 70 MARINE09 12981 113 Ice free Outer shell Sutherland 1986 1979; Peacock et al 1978

Harkness and Wilson 218 SRR-483 - Ardyne Point 55.867 5.067 - - - 208114 668008 Shell Undisturbed by glacial action - 14 C 11530 60 MARINE09 13020 90 Ice free Inner shell Sutherland 1986 1979; Peacock et al 1978

Harkness and Wilson 218 SRR-484 - Ardyne Point 55.867 5.067 - - - 208114 668008 Shell Undisturbed by glacial action - 14 C 10230 210 MARINE09 11356 343 Ice free Outer shell Sutherland 1986 1979; Peacock et al 1978

Harkness and Wilson 218 SRR-484 - Ardyne Point 55.867 5.067 - - - 208114 668008 Shell Undisturbed by glacial action - 14 C 10840 100 MARINE09 12290 116 Ice free Inner shell Sutherland 1986 1979; Peacock et al 1978

Harkness and Wilson 218 SRR-485 - Ardyne Point 55.867 5.067 - - - 208114 668008 Shell Shells at base of marine clay overlying till - 14 C 11170 70 MARINE09 12649 61 Retreat Outer shell Sutherland 1986 1979; Peacock et al 1978

Harkness and Wilson 218 SRR-485 - Ardyne Point 55.867 5.067 - - - 208114 668008 Shell Shells at base of marine clay overlying till - 14 C 11120 110 MARINE09 12638 95 Retreat Inner shell Sutherland 1986 1979; Peacock et al 1978

Harkness and Wilson 218 SRR-486 - Ardyne Point 55.867 5.067 - - - 208114 668008 Shell Shells at top of marine clay overlying till - 14 C 10560 60 MARINE09 11814 137 Retreat Outer shell Sutherland 1986 1979; Peacock et al 1978

Harkness and Wilson 218 SRR-486 - Ardyne Point 55.867 5.067 - - - 208114 668008 Shell Shells at top of marine clay overlying till - 14 C 10620 70 MARINE09 11937 115 Retreat Inner shell Sutherland 1986 1979; Peacock et al 1978

Harkness and Wilson 218 SRR-615 - Ardyne Point 55.867 5.067 - - - 208114 668008 Shell Undisturbed by glacial action - 14 C 10750 140 MARINE09 12158 231 Ice free Sutherland 1986 1979; Peacock et al 1978 Harkness and Wilson 219 SRR-479 - Inverkip 55.900 4.883 - - - 219700 671300 Shell Undisturbed by glacial action - 14 C 12560 60 MARINE09 13996 92 Ice free Outer shell Sutherland 1986 1979 Harkness and Wilson 219 SRR-479 - Inverkip 55.900 4.883 - - - 219700 671300 Shell Undisturbed by glacial action - 14 C 12620 70 MARINE09 14060 116 Ice free Inner shell Sutherland 1986 1979

220 Birm-121 - Greenock 55.933 4.717 - - - 230700 675200 Shell Undisturbed by glacial action - 14 C 10560 180 MARINE09 11725 339 Ice free Bishop and Dickson 1970 Sutherland 1986

220 Birm-121 - Greenock 55.933 4.717 - - - 230700 675200 Shell Undisturbed by glacial action - 14 C 9890 160 MARINE09 10832 207 Ice free Bishop and Dickson 1970 Sutherland 1986

221 - - Loch Goil 56.145 4.905 - - - 219572 698508 Shell - 14 C 12260 150 MARINE09 13669 169 Ice free Sutherland 1981 Sutherland 1986 Rose 1980; Otlet and 222 - - Rhu 56.046 4.820 - - - 224394 687257 Shell - 14 C 11520 250 MARINE09 12976 239 Ice free Sutherland 1986 Walker 1979 223 SRR-2006 - Townhead 56.005 4.714 - - - 230823 682435 Shell - 14 C 12110 70 MARINE09 13548 103 Ice free Inner shell Browne et al. 1983a Sutherland 1986 223 SRR-2006 - Townhead 56.005 4.714 - - - 230823 682435 Shell - 14 C 12190 70 MARINE09 13653 88 Ice free Outer shell Browne et al. 1983a Sutherland 1986 Browne and Graham 224 - - Balloch 56.022 4.612 - - - 237253 684042 Shell - 14 C 11320 130 MARINE09 12788 140 Ice free Sutherland 1986 1981 Andersen et al. 1981; 225 GU-12 - Cardross 55.966 4.701 - - - 231428 678080 Shell Laminated marine sediments - 14 C 11787 122 MARINE09 13248 109 Ice free Baxter et al 1969 Sutherland 1986

225 N-475 - Cardross 55.966 4.701 - - - 231428 678080 Shell Laminated marine sediments undisturbed by glacial action - 14 C 11900 205 MARINE09 13368 211 Ice free Yamasaki et al 1969 Sutherland 1986 Harkness and Wilson 225 SRR-833 - Cardross 55.966 4.701 - - - 231428 678080 Shell Laminated marine sediments undisturbed by glacial action - 14 C 12720 170 MARINE09 14315 335 Ice free Outer shell Sutherland 1986 1979 Harkness and Wilson 225 SRR-833 - Cardross 55.966 4.701 - - - 231428 678080 Shell Laminated marine sediments undisturbed by glacial action - 14 C 12720 240 MARINE09 14325 357 Ice free Inner shell Sutherland 1986 1979

226 St-3267 - Dumbarton 55.945 4.606 - - - 237275 675481 Shell Marine horizon above boulder clay - 14 C 11805 205 MARINE09 13280 209 Retreat Andersen et al. 1981

227 SRR-2009 - Hawthornhill 55.950 4.603 - - - 237540 676010 Shell Undisturbed by glacial action - 14 C 14180 130 MARINE09 16885 125 Ice free Browne et al 1983b Sutherland 1986 228 OxA-1701 - Inverleven 55.942 4.579 - - - 238968 675066 Shell Top of glaciomarine bed - 14 C 12300 120 MARINE09 13745 146 Retreat Hedges et al.1989 CBA date list Browne and Graham 228 SRR-1528 - Interleven 55.942 4.579 - - - 238968 675066 Shell Undisturbed by glacial action - 14 C 12360 140 MARINE09 13816 163 Ice free Sutherland 1986 1981 Browne and Graham 228 SRR-1529 - Interleven 55.942 4.579 - - - 238968 675066 Shell Undisturbed by glacial action - 14 C 10750 120 MARINE09 12156 215 Ice free Sutherland 1986 1981

229 Birm-122 a - Wester Fulwood 55.935 4.465 - - - 246056 674053 Shell Clay below terrace gravel - 14 C 12650 200 MARINE09 14220 368 Ice free Inner shell. Late glacial sea in Clyde Bishop and Dickson 1970 Andersen et al. 1981

229 Birm-122 b - Wester Fulwood 55.935 4.465 - - - 246056 674053 Shell Clay below terrace gravel - 14 C 13020 220 MARINE09 14806 356 Ice free Outer shell. Late glacial sea in Clyde Bishop and Dickson 1970 Andersen et al. 1981

230 OxA-1699 - Inchinnan 55.900 4.432 - - - 247956 670108 Shell Marine bed - 14 C 12840 150 MARINE09 14497 307 Ice free Hedges et al. 1989 CBA date list 230 OxA-1700 - Inchinnan 55.900 4.432 - - - 247956 670108 Shell Marine bed - 14 C 10410 100 MARINE09 11481 194 Ice free Hedges et al. 1989 CBA date list Harkness and Wilson 230 SRR-923 - Inchinnan 55.900 4.432 - - - 247956 670108 Shell Marine bed; undisturbed by glacial action - 14 C 12289 310 MARINE09 13731 372 Ice free Outer shell Sutherland 1986 1979; Browne et al 1977

Harkness and Wilson 230 SRR-923 - Inchinnan 55.900 4.432 - - - 247956 670108 Shell Marine bed; undisturbed by glacial action - 14 C 14346 +625 -580 MARINE09 17019 910 Ice free Inner shell Sutherland 1986 1979; Browne et al 1977

Harkness and Wilson 230 SRR-924 - Inchinnan 55.900 4.432 - - - 247956 670108 Shell Marine bed; undisturbed by glacial action - 14 C 13083 150 MARINE09 14886 364 Ice free Outer shell Sutherland 1986 1979; Browne et al 1977

Harkness and Wilson 230 SRR-924 - Inchinnan 55.900 4.432 - - - 247956 670108 Shell Marine bed; undisturbed by glacial action - 14 C 12464 275 MARINE09 13905 341 Ice free Inner shell Sutherland 1986 1979; Browne et al 1977

Harkness and Wilson 230 SRR-925 - Inchinnan 55.900 4.432 - - - 247956 670108 Shell Marine bed; undisturbed by glacial action - 14 C 13492 330 MARINE09 15832 618 Ice free Outer shell Sutherland 1986 1979; Browne et al 1977

Harkness and Wilson 230 SRR-925 - Inchinnan 55.900 4.432 - - - 247956 670108 Shell Marine bed; undisturbed by glacial action - 14 C 13501 265 MARINE09 15910 487 Ice free Inner shell Sutherland 1986 1979; Browne et al 1977

Harkness and Wilson 230 SRR-926 - Inchinnan 55.900 4.432 - - - 247956 670108 Shell Marine bed; undisturbed by glacial action - 14 C 12389 110 MARINE09 13852 123 Ice free Outer shell Sutherland 1986 1979; Browne et al 1977

Harkness and Wilson 230 SRR-926 - Inchinnan 55.900 4.432 - - - 247956 670108 Shell Marine bed; undisturbed by glacial action - 14 C 12333 110 MARINE09 13785 133 Ice free Inner shell Sutherland 1986 1979; Browne et al 1977

Harkness and Wilson 230 SRR-927 - Inchinnan 55.900 4.432 - - - 247956 670108 Shell Marine bed; undisturbed by glacial action - 14 C 12694 100 MARINE09 14141 137 Ice free Outer shell Sutherland 1986 1979; Browne et al 1977

Harkness and Wilson 230 SRR-927 - Inchinnan 55.900 4.432 - - - 247956 670108 Shell Marine bed; undisturbed by glacial action - 14 C 12922 125 MARINE09 14732 264 Ice free Inner shell Sutherland 1986 1979; Browne et al 1977

231 - - Garnieland Farm 55.894 4.436 - - - 247680 669400 Shell Clyde beds - 14 C 12011 80 MARINE09 13427 87 Ice free Browne et al. 1983a 231 - - Garnieland Farm 55.894 4.436 - - - 247680 669400 Shell Clyde beds - 14 C 12424 157 MARINE09 13880 186 Ice free 231 - - Garnieland Farm 55.894 4.436 - - - 247680 669400 Shell Clyde beds - 14 C 13147 221 MARINE09 15076 559 Ice free 232 - - Turnyland Farm 55.892 4.446 - - - 247080 669220 Shell Clyde beds - 14 C 12458 80 MARINE09 13902 91 Ice free Browne et al.1983a

233 St-3334 - Gallowhill, Paisley 55.861 4.403 - - - 249618 665737 Shell Marine clay - 14 C 12610 210 MARINE09 14182 370 Ice free Inner shell Peacock 1971 Andersen et al. 1981

Andersen et al. 1981; 233 St-3334 - Gallowhill, Paisley 55.861 4.403 - - - 249618 665737 Shell Marine clay - 14 C 12890 360 MARINE09 14572 611 Ice free Outer shell Peacock 1971 Sutherland 1986

Page 10 of 19 Dates relating to the build up and retreat of the last British -Irish Ice Sheet. Version 2.0. Census date: 1 May 2012.

233 St-3481 - Gallowhill, Paisley 55.861 4.403 - - - 249618 665737 Shell Marine clay - 14 C 12615 230 MARINE09 14195 397 Ice free Inner shell Peacock 1971 Andersen et al. 1981

Andersen et al. 1981; 233 St-3334 - Gallowhill, Paisley 55.861 4.403 - - - 249618 665737 Shell Marine clay - 14 C 12125 210 MARINE09 13574 203 Ice free Outer shell Peacock 1971 Sutherland 1986 Inner shell. Contamination by old carbon cannot be ruled 233 St-3333 - Gallowhill, Paisley 55.861 4.403 - - - 249618 665737 Shell Marine clay - 14 C 15625 240 MARINE09 18199 143 Unclassified Peacock 1971 Andersen et al. 1981 out Andersen et al. 1981; 233 St-3334 - Gallowhill, Paisley 55.861 4.403 - - - 249618 665737 Shell Marine clay - 14 C 12930 160 MARINE09 14738 273 Ice free Outer shell Peacock 1971 Sutherland 1986 Harkness and Wilson 234 SRR-62 - Renfrew 55.850 4.400 - - - 249500 665800 Shell Undisturbed by glacial action - 14 C 12790 90 MARINE09 14387 265 Ice free Sutherland 1986 1974

235 GX-0597 - Wilderness Pit, Bishopbriggs 55.923 4.240 - - - 260060 672297 Bone Remains within sands below till - 14 C 27550 +1370 -1680 INTCAL09 32189 1348 Advance Woolly rhinoceros, reliability questioned Rolfe 1966; Sissons 1967 Jones and Keen 1993

235 OxA-19560 - Wilderness Pit, Bishopbriggs 55.923 4.240 - - - 260060 672297 Bone - 14 C AMS 31140 170 INTCAL09 35400 196 Ice free Distal left humerus Jacobi et al. 2009 236 Ox-X-2288-33 - Hungryside, Bishopbriggs 55.933 4.204 - - - 262400 673300 Bone - 14 C AMS 32250 700 INTCAL09 37026 792 Ice free Left metacarpal. Jacobi et al. 2009

237 Hel-160 - Drymen 56.065 4.450 - - - 247436 688514 Clay-gyttja Oldest limnic terrestrial sediments - 14 C 12510 310 INTCAL09 14603 537 Ice free Vasari 1977 Gray and Lowe 1977

237 I-2235 - Drymen 56.065 4.451 - - - 247436 688514 Shells Gravel band in a sand pit - 14 C 11700 170 MARINE09 13198 146 Ice free Simpson 1933 Sissons 1967 Organic sample from unit above diamicton and below sand and diamicton attributed to Last 238 CAMS 72408 - Balglass Burn 56.052 4.279 - - - 258110 686630 Coleoptera - 14 C AMS 30080 200 INTCAL09 34735 137 Retreat; Advance Brown et al. 2006 Glacial Maximum and drumlins in area Organic sample from unit above diamicton and below sand and diamicton attributed to Last 238 CAMS 72409 - Balglass Burn 56.052 4.279 - - - 258110 686630 Coleoptera - 14 C AMS 30650 220 INTCAL09 35033 243 Retreat; Advance Brown et al. 2006 Glacial Maximum and drumlins in area Organic sample from unit above diamicton and below sand and diamicton attributed to Last 238 CAMS 72407 - Balglass Burn 56.052 4.279 - - - 258110 686630 Pollen - 14 C AMS 32770 290 INTCAL09 37239 480 Retreat; Advance Brown et al. 2006 Glacial Maximum and drumlins in area Organic sample from unit above diamicton and below sand and diamicton attributed to Last 238 CAMS 72404 - Balglass Burn 56.052 4.279 - - - 258110 686630 Pollen - 14 C AMS 32800 280 INTCAL09 37273 485 Retreat; Advance Brown et al. 2006 Glacial Maximum and drumlins in area Organic sample from unit above diamicton and below sand and diamicton attributed to Last 238 CAMS 72404 - Balglass Burn 56.052 4.279 - - - 258110 686630 Pollen - 14 C AMS 34480 340 INTCAL09 39466 502 Retreat; Advance Brown et al. 2006 Glacial Maximum and drumlins in area Organic sample from unit above diamicton and below sand and diamicton attributed to Last 238 CAMS 72405 - Balglass Burn 56.052 4.279 - - - 258110 686630 Pollen - 14 C AMS 28050 160 INTCAL09 32228 361 Retreat; Advance Brown et al. 2006 Glacial Maximum and drumlins in area Organic sample from unit above diamicton and below sand and diamicton attributed to Last 238 SRR 6361 - Balglass Burn 56.052 4.279 - - - 258110 686630 Humic - 14 C 35575 +425 -405 INTCAL09 40799 469 Retreat; Advance Brown et al. 2006 Glacial Maximum and drumlins in area Organic sample from unit above diamicton and below sand and diamicton attributed to Last 238 SRR 6362 - Balglass Burn 56.052 4.279 - - - 258110 686630 Humin - 14 C 32460 +435 -410 INTCAL09 37037 526 Retreat; Advance Brown et al. 2006 Glacial Maximum and drumlins in area 239 OxA-1347 - Kinneil Kerse 56.013 3.664 - - - 296300 681200 - Marine unit - 14 C 13360 120 MARINE09 15526 365 Ice free Hedges et al. 1988b CBA date list 240 OxA-8055 - Stirling 56.138 4.099 - - - 269500 696140 Shell Marine sediments in borehole - 14 C 11890 60 MARINE09 13341 61 Ice free Peacock 2002

241 I-2234 - Menteith 56.156 4.316 - - - 256182 698355 Shell Glacially transported marine clay interbedded with glaciofluvial sediment - 14 C 12205 170 MARINE09 13627 175 Retreat Sissons 1967 Andersen et al. 1981

242 OxA-8056 - IMAU borehole 56.169 4.167 - - - 265580 699610 Shell Marine sediments within borehole - 14 C 12945 65 MARINE09 14786 241 Ice free Peacock 2002 243 Beta-106595 - Moss-side of Boquhapple 56.160 4.160 - - - 265880 698480 Shell Marine sediments within borehole - 14 C 12390 60 MARINE09 13839 74 Ice free Holloway et al. 2002 243 Beta-106596 - Moss-side of Boquhapple 56.160 4.160 - - - 265880 698480 Shell Marine sediments within borehole - 14 C 12640 50 MARINE09 14083 94 Ice free Holloway et al. 2002 243 Beta-106597 - Moss-side of Boquhapple 56.160 4.160 - - - 265880 698480 Shell Marine sediments within borehole - 14 C 13200 50 MARINE09 15136 123 Ice free Holloway et al. 2002 244 HV-4989 - Doune Lodge, Callender 56.233 4.215 - - - 262700 706700 Peat/gyttja Basal peat of kettle hole in glaciofluvial deposits - 14 C 12750 120 INTCAL09 15198 313 Retreat Lowe 1978 Evans et al. 2005 Harkness and Wilson 245 SRR-390 - East Brackley 56.167 3.383 - - - 314470 698710 Peat From lowest of layers interbedded with coarse sand - 14 C 11100 160 MARINE09 12562 188 Ice free 1979 Errol beds (raised marine sediments containing high-arctic Peacock and Browne 246 SRR-391 - Easter Kilwiss, Cupar 56.279 3.164 - - - 327950 710180 Plant material Late glacial marine sediments - 14 C 13636 130 INTCAL09 16780 139 Ice free fauna) 1998 Harkness and Wilson 247 SRR-391 - Shiells 56.283 3.167 - - - 327960 710180 Organics Organics from silt layer overlain by peat - 14 C 13640 130 MARINE09 16235 374 Ice free 1979 Harkness and Wilson 248 SRR-388 - Darnoe 56.317 3.200 - - - 325960 709200 Peat Peat resting on glacial gravels and overlain by sand - 14 C 11860 90 MARINE09 13321 86 Retreat 1979 Errol beds (raised marine sediments containing high-arctic Peacock and Browne 249 Beta-111509 - Gallowflat 56.374 3.276 - - - 321100 720200 Shell Marine unit - 14 C AMS 13340 60 MARINE09 15396 252 Ice free fauna) 1998 Errol beds (raised marine sediments containing high-arctic 249 AA-37787 - Gallowflat 56.374 3.276 - - - 321100 720200 Shell Marine unit - 14 C 14205 50 MARINE09 16893 84 Ice free Peacock 2002 fauna) Errol beds (raised marine sediments containing high-arctic 249 CAMS-77912 - Gallowflat 56.374 3.276 - - - 321100 720200 Shell Marine unit - 14 C 14260 60 MARINE09 16927 93 Ice free Peacock 2002 fauna) Errol beds (raised marine sediments containing high-arctic 249 AA-37788 - Gallowflat 56.374 3.276 - - - 321100 720200 Shell Marine unit - 14 C 13710 130 MARINE09 16360 334 Ice free Peacock 2002 fauna) 249 CAMS111599 - Gallowflat 56.374 3.276 - - - 321100 720200 Foram Marine mud above till - 14 C AMS 13675 40 MARINE09 16343 276 Retreat McCabe et al. 2007c 249 CAMS111598 - Gallowflat 56.374 3.276 - - - 321100 720200 Foram Marine mud above till - 14 C AMS 13655 45 MARINE09 16306 268 Retreat Suggest date for Perth readvance McCabe et al. 2007c Type site for 'Errol beds' (raised marine sediments 250 OxA-1703 - Inchcoonans Claypit 56.397 3.230 - - - 324100 723400 Bivalve Marine sediments - 14 C 13090 140 MARINE09 14902 344 Ice free Hedges et al. 1989 CBA date list containing high-arctic fauna); minimum age Type site for 'Errol beds' (raised marine sediments Peacock and Browne 250 Beta-111507 - Inchcoonans Claypit 56.397 3.231 - - - 324100 723400 Seaweed Marine sediments - 14 C 13650 70 MARINE09 16254 322 Ice free containing high-arctic fauna) 1998 Type site for 'Errol beds' (raised marine sediments Peacock and Browne 250 Beta-111508 - Inchcoonans Claypit 56.397 3.231 - - - 324100 723400 Shell Marine sediments - 14 C 13710 80 MARINE09 16391 295 Ice free containing high-arctic fauna) 1998 251 AA-37789 - Burnside 56.440 3.131 - - - 332590 728610 Shell Marine sediments in borehole - 14 C 12990 85 MARINE09 14832 243 Ice free Peacock 2002 252 AA-37790 - Powgavie 56.415 3.149 - - - 329120 725320 Shell Marine sediments in borehole - 14 C 13124 90 MARINE09 15046 204 Ice free Peacock 2002 252 AA-37791 - Powgavie 56.415 3.149 - - - 329120 725320 Shell Marine sediments in borehole - 14 C 13165 80 MARINE09 15096 161 Ice free Peacock 2002

253 NZ-1194 - Morton 56.421 2.864 - - - 346700 725700 Charcoal - 14 C 12200 240 INTCAL09 14190 408 Ice free Human occupation Switsur and West 1972 CBA date list

Errol beds (raised marine sediments containing high-arctic Peacock and Browne 254 OxA-1704 - Barry claypit 56.502 2.736 - - - 354700 734700 Shell - 14 C 14350 170 MARINE09 17010 180 Ice free CBA date list fauna) 1998; Hedges et al. 1989

255 - - Kinlochspelve 56.367 5.781 - - - 166529 725833 Shell - 14 C 11330 170 MARINE09 12804 163 Ice free Gray and Brooks 1972 Sutherland 1986 256 Birm-361 - Glen Cruitten 56.417 5.467 - - - 186800 729900 Shell Undisturbed by glacial action - 14 C 11270 200 MARINE09 12776 192 Ice free Outer shell Gray 1975 Sutherland 1986 256 Birm-361 - Glen Cruitten 56.417 5.467 - - - 186800 729900 Shell Undisturbed by glacial action - 14 C 12190 240 MARINE09 13622 242 Ice free Middle shell Gray 1975 Sutherland 1986 256 Birm-361 - Glen Cruitten 56.417 5.467 - - - 186800 729900 Shell Undisturbed by glacial action - 14 C 11770 230 MARINE09 13245 204 Ice free Inner shell Gray 1975 Sutherland 1986 Portlandia arctica from shelly lenticule at base of cliff in marine silts overlain by beach Samples from glaciomarine silts immediately within limit 257 OxA1345 - Balure of Shian 56.524 5.421 - - - 189620 742160 Bivalve - 14 C 10880 120 MARINE09 12382 177 Ice free Hedges et al.1988a gravels: i.e. not explicit evidence for previous ice cover of former Creran glacier Andersen et al. 1981; 257 St-3306 - South Shian, Argllshire 56.589 5.283 - - - 198466 748983 Shell Glacially disturbed marine clay below Loch Lomond Readvance till - 14 C 11430 220 MARINE09 12902 208 Advance Inner shell Peacock 1971 Sutherland 1984

258 IGS-C14/16 - South Shian, Argllshire 56.589 5.283 - - - 198466 748983 Shell Glacially disturbed marine clay below Loch Lomond Readvance till - 14 C 6705 130 MARINE09 7248 139 Advance Outer shell Peacock 1971 Sutherland 1986

258 St-3332 - South Shian, Argllshire 56.589 5.283 - - - 198466 748983 Shell Glacially disturbed marine clay below Loch Lomond Readvance till - 14 C 11530 210 MARINE09 12982 212 Advance Inner shell Peacock 1971 Andersen et al. 1981

258 IGS-C14/18 - South Shian, Argllshire 56.589 5.283 - - - 198466 748983 Shell Glacially disturbed marine clay below Loch Lomond Readvance till - 14 C 11300 300 MARINE09 12843 302 Advance Outer shell Peacock 1971 Sutherland 1986 258 IGS-C14/17 - South Shian, Argllshire 56.589 5.283 - - - 198466 748983 Shell Glacially disturbed marine clay below Loch Lomond Readvance till - 14 C 11805 180 MARINE09 13272 173 Advance Peacock 1971 Sutherland 1986 Exposure time 259 - BI 4 Beinn Inverveigh 56.514 4.780 - - - 227797 738840 Boulder From highest point of boulders on the summit ridge of Beinn Inverveigh 604 CN 10 Be - - - 12900 1500 Oldest date; large error due to low sample quartz mass Golledge et al. 2007 (cumulative) Exposure time 259 - BI 1 Beinn Inverveigh 56.510 4.799 - - - 227798 738840 Boulder From highest point of boulders on the summit ridge of Beinn Inverveigh 581 CN 10 Be - - - 11600 1000 Golledge et al. 2007 (cumulative) Exposure time 259 - BI 2 Beinn Inverveigh 56.510 4.799 - - - 227799 738840 Boulder From highest point of boulders on the summit ridge of Beinn Inverveigh 590 CN 10 Be - - - 12500 900 Golledge et al. 2007 (cumulative) Exposure time 259 - BI 3 Beinn Inverveigh 56.510 4.809 - - - 227800 738840 Boulder From highest point of boulders on the summit ridge of Beinn Inverveigh 623 CN 10 Be - - - 12900 1000 Oldest date Golledge et al. 2007 (cumulative) Propose readvance of the last British Ice Sheet c. 18 ka BP termed the ‘Lunan Bay’ readvance (McCabe et al. 2007c). 260 CAMS111597 - Lunan Bay 56.662 2.497 - - - 369512 752363 Foram Marine mud below ice contact gravel - 14 C AMS 17065 40 MARINE09 19658 80 Advance McCabe et al. 2007c Stratigraphic interpretation questioned by Peacock et al. (2007).

Propose readvance of the last British Ice Sheet c. 18 ka BP termed the ‘Lunan Bay’ readvance (McCabe et al. 2007c). 260 CAMS111596 - Lunan Bay 56.662 2.497 - - - 369512 752363 Foram Marine mud below ice contact gravel - 14 C AMS 17720 50 MARINE09 20450 104 Advance McCabe et al. 2007c Stratigraphic interpretation questioned by Peacock et al. (2007). Errol beds' (raised marine sediments containing high- Peacock and Browne 261 AA-18512 - Springfield Claypit 56.726 3.041 - - - 336300 759800 Shell Marine sediments - 14 C 12510 80 MARINE09 13942 98 Ice free arctic fauna) 1998 Errol beds' (raised marine sediments containing high- Peacock and Browne 262 Birm-661 - Montrose 56.729 2.503 - - - 369200 759800 Shell Marine sediments - 14 C 11110 210 MARINE09 12603 264 Ice free arctic fauna) 1998 Errol beds' (raised marine sediments containing high- Peacock and Browne 262 Birm-660 - Montrose 56.729 2.503 - - - 369200 759800 Shell Marine sediments - 14 C 10610 220 MARINE09 11893 336 Ice free arctic fauna) 1998 Outside calibration Outside 263 - - Benholm Burn 56.814 2.336 - - - 379500 769200 Pollen Peats interbedded with till - 14 C 42000 - - Unclassified Donner 1979 Sutherland 1984 range calibration range Harkness and Wilson 264 SRR-387 - Brinziehill 56.900 2.333 - - - 379360 779180 Peat From horizon overlain by till-like material - 14 C 12390 100 MARINE09 13850 111 Advance 1979

Page 11 of 19 Dates relating to the build up and retreat of the last British -Irish Ice Sheet. Version 2.0. Census date: 1 May 2012.

265 SRR-304 - Loch Etteridge 57.009 4.161 - - - 268800 792900 Clay-gyttja Oldest limnic terrestrial sediments infilling kettle hole - 14 C 13150 390 INTCAL09 15911 670 Retreat Possible contamination by mineral carbon Sissons and Walker 1974 Gray and Lowe 1977 Everest and Golledge Everest and Kubik 265 - - Loch Etteridge 57.012 4.166 - - - 268800 792900 Clay-gyttja Lowest organic horizon - 14 C AMS 12930 40 INTCAL09 15384 238 Ice free 2004 2006

266 - GGa1 Glen Geusachan 57.022 3.664 - - - 299006 793545 Boulder Crest of outermost lateral moraine 570 CN 10 Be - - - 12200 700 Margin Erratic 10 Be mean no erosion Everest and Kubik 2006

266 - GGa2 Glen Geusachan 57.022 3.664 - - - 299006 793545 Boulder Crest of outermost lateral moraine 570 CN 10 Be - - - 14300 900 Margin Erratic 10 Be mean no erosion Everest and Kubik 2006

266 - GGa4 Glen Geusachan 57.022 3.664 - - - 299006 793545 Boulder Crest of outermost lateral moraine 570 CN 10 Be - - - 13800 800 Margin Erratic 10 Be mean no erosion Everest and Kubik 2006

266 - GGb1 Glen Geusachan 57.022 3.664 - - - 299006 793545 Boulder Crest of innermost lateral moraine 560 CN 10 Be - - - 16500 1000 Margin Erratic 10 Be mean no erosion Everest and Kubik 2006

266 - GGb2 Glen Geusachan 57.022 3.664 - - - 299006 793545 Boulder Crest of innermost lateral moraine 560 CN 10 Be - - - 14200 800 Margin Erratic 10 Be mean no erosion Everest and Kubik 2006

266 - GGb3 Glen Geusachan 57.022 3.664 - - - 299006 793545 Boulder Crest of innermost lateral moraine 560 CN 10 Be - - - 12400 700 Margin Erratic 10 Be mean no erosion Everest and Kubik 2006

267 - CE6 Glen Einich Moraine 57.098 3.792 - - - 291466 802216 Boulder Crest of outermost lateral moraine beneath Coire Cregach 500 CN 10 Be - - - 14500 900 Margin Erratic 10 Be mean no erosion Everest and Kubik 2006

267 - CE7 Glen Einich Moraine 57.098 3.792 - - - 291466 802216 Boulder Crest of recessional lateral moraine, 100 m east of outermost lateral 500 CN 10 Be - - - 13100 800 Margin Erratic 10 Be mean no erosion Everest and Kubik 2006

267 - CE8 Glen Einich Moraine 57.098 3.792 - - - 291466 802216 Boulder Crest of recessional lateral moraine, 100 m east of outermost lateral 520 CN 10 Be - - - 13200 800 Margin Erratic 10 Be mean no erosion Everest and Kubik 2006

267 - CE9 Glen Einich Moraine 57.098 3.792 - - - 291466 802216 Boulder Crest of outermost lateral moraine beneath Coire Cregach 530 CN 10 Be - - - 14600 900 Margin Erratic 10 Be mean no erosion Everest and Kubik 2006 Everest and Golledge 268 - - Glen Einich 57.120 3.777 - - - 292411 804588 Sand Within former lake basins - OSL - - - 16700 540 Ice free Lukas et al. 2004 2004 Everest and Golledge 269 - - Lairig Ghru 57.125 3.741 - - - 294584 805058 Sand Within former lake basins - OSL - - - 16700 520 Ice free Lukas et al. 2004 2004

270 - CE1 Glen More Moraine 57.130 3.784 - - - 292519 805479 Boulder Proximal slope of moraine, on glaciofluvial ridge 430 CN 10 Be - - - 14300 900 Margin Everest and Kubik 2006

270 - CE2 Glen More Moraine 57.132 3.778 - - - 292519 805479 Boulder Proximal slope of moraine, on glaciofluvial ridge 480 CN 10 Be - - - 13400 800 Margin Everest and Kubik 2006

270 - CE3 Glen More Moraine 57.128 3.777 - - - 292519 805479 Boulder 470 CN 10 Be - - - 14800 900 Margin Everest and Kubik 2006

270 - CE4 Glen More Moraine 57.130 3.785 - - - 292519 805479 Boulder Crest of moraine 410 CN 10 Be - - - 15200 900 Margin Everest and Kubik 2006 Exposure time Interpreted age based on ice cover duration model 214 ka 271 - AS-1 Argyll Stone 57.113 3.808 - - - 290515 804029 Tor Tor summit 829 CN 10 Be - - - 48600 4700 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 214 ka 271 - AS-1 Argyll Stone 57.113 3.808 - - - 290515 804029 Tor Tor summit 829 CN 26 Al - - - 45000 12100 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 116 ka 272 - CG1A Cairn Gorm 57.117 3.638 - - - 300850 804069 Tor 1230 CN 10 Be - - - 21300 2200 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 122 ka 272 - CG1B Cairn Gorm 57.117 3.638 - - - 300850 804069 Tor 1230 CN 10 Be - - - 25900 3300 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 116 ka 272 - CG1A Cairn Gorm 57.117 3.638 - - - 300850 804069 Tor Tor 1230 CN 26 Al - - - 27500 12500 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 122 ka 272 - CG1B Cairn Gorm 57.117 3.638 - - - 300850 804069 Tor Tor 1230 CN 26 Al - - - 27100 4700 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 132 ka 273 - CG2 Cnap Coire na Spreidhe 57.135 3.627 - - - 301605 805960 Tor Tor summit 1028 CN 10 Be - - - 33100 3100 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 138 ka 274 - BM-1 Beinn Mheadhoin 57.095 3.613 - - - 302313 801500 Tor Tor summit 1160 CN 10 Be - - - 36400 3800 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 130 ka 274 - BM-2 Beinn Mheadhoin 57.095 3.613 - - - 302335 801591 Tor Tor summit 1150 CN 10 Be - - - 31600 3600 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 115 ka 274 - BM-3A Beinn Mheadhoin 57.097 3.610 - - - 302468 801683 Tor Tor summit near weathering pit 1182 CN 10 Be - - - 20200 2000 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 216 ka 274 - BM-3B Beinn Mheadhoin 57.097 3.610 - - - 302468 801683 Tor Tor summit away from pit 1182 CN 10 Be - - - 50500 8100 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 129 ka 274 - BM4 Beinn Mheadhoin 57.100 3.607 - - - 302710 802230 Tor Tor summit roche moutonnée 1080 CN 10 Be - - - 30000 2500 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 138 ka 274 - BM-1 Beinn Mheadhoin 57.095 3.613 - - - 302313 801500 Tor Tor summit 1160 CN 26 Al - - - 34200 5000 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 130 ka 274 - BM-2 Beinn Mheadhoin 57.095 3.613 - - - 302335 801591 Tor Tor summit 1150 CN 26 Al - - - 28600 3800 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 115 ka 274 - BM-3A Beinn Mheadhoin 57.097 3.610 - - - 302468 801683 Tor Tor summit near weathering pit 1182 CN 26 Al - - - 21100 3700 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 216 ka 274 - BM-3B Beinn Mheadhoin 57.097 3.610 - - - 302468 801683 Tor Tor summit away from pit 1182 CN 26 Al - - - 71700 8200 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 129 ka 274 - BM4 Beinn Mheadhoin 57.100 3.607 - - - 302710 802230 Tor Tor summit roche moutonnée 1080 CN 26 Al - - - 33200 5100 Phillips et al. 2006 (cumulative) BP Harkness and Wilson 275 SRR-305 - Loch Builg 57.083 3.583 - - - 304065 800203 Organics Fine detritus mud from base of kettle hole - 14 C 11770 90 MARINE09 13233 83 Retreat 1979 Exposure time Interpreted age based on ice cover duration model 173 ka 276 - 7/99/6 Creag Mho`r 57.125 3.550 - - - 306158 804773 Tor Tor plinth 866 CN 10 Be - - - 38900 3100 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 173 ka 276 - 7/99/6 Creag Mho`r 57.125 3.550 - - - 306158 804773 Tor Tor plinth 866 CN 26 Al - - - 39200 2900 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 213 ka 277 - 7/99/5 Dagrum 57.132 3.550 - - - 306188 805503 Tor Tor plinth 848 CN 10 Be - - - 47700 3500 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 105 ka 277 - 7/99/3 Dagrum 57.135 3.548 - - - 306365 805929 Tor Tor plinth 848 CN 10 Be - - - 18500 1500 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 213 ka 277 - 7/99/5 Dagrum 57.132 3.550 - - - 306188 805503 Tor Tor plinth 848 CN 26 Al - - - 45300 3500 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 675 ka 278 - RF1 Clach na Gnuìs 57.110 3.462 - - - 311510 802971 Tor Tor summit 1010 CN 10 Be - - - 199900 13900 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 337ka 278 - RF2 Clach na Gnuìs 57.110 3.462 - - - 311507 802983 Tor Tor profile 1010 CN 10 Be - - - 95600 6800 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 222 ka 278 - RF3 Clach na Gnuìs 57.110 3.462 - - - 311514 802981 Tor Tor profile 1010 CN 10 Be - - - 55500 4100 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 127 ka 278 - RF4 Clach na Gnuìs 57.110 3.462 - - - 311524 802999 Tor Tor profile 1008 CN 10 Be - - - 28800 2000 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 215 ka 278 - RF5 Clach na Gnuìs 57.110 3.460 - - - 311581 803128 Tor Tor plinth 1005 CN 10 Be - - - 49300 3400 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 675 ka 278 - RF1 Clach na Gnuìs 57.110 3.462 - - - 311510 802971 Tor Tor summit 1010 CN 26 Al - - - 164800 15800 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 337ka 278 - RF2 Clach na Gnuìs 57.110 3.462 - - - 311507 802983 Tor Tor profile 1010 CN 26 Al - - - 108800 10700 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 222 ka 278 - RF3 Clach na Gnuìs 57.110 3.462 - - - 311514 802981 Tor Tor profile 1010 CN 26 Al - - - 63500 8400 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 127 ka 278 - RF4 Clach na Gnuìs 57.110 3.462 - - - 311524 802999 Tor Tor profile 1008 CN 26 Al - - - 31900 5300 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 82 ka 279 - BB Cnap a` Chle irich 57.093 3.483 - - - 310139 801181 Boulder Erratic 1156 CN 10 Be - - - 14800 1100 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 215 ka 279 - BB Cnap a` Chle irich 57.093 3.483 - - - 310139 801181 Boulder Erratic 1156 CN 26 Al - - - 13000 2000 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 338 ka 280 - BA 1 Leabaidh an Daimh Bruidhe 57.098 3.433 - - - 313196 801840 Tor Tor summit 1171 CN 10 Be - - - 96900 6700 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 305 ka 280 - BAA Leabaidh an Daimh Bruidhe 57.102 3.432 - - - 313368 801963 Tor Tor summit 1147 CN 10 Be - - - 79100 5400 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 82 ka 280 - BA 1 Leabaidh an Daimh Bruidhe 57.098 3.433 - - - 313196 801840 Tor Tor summit 1171 CN 26 Al - - - 88600 8300 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 338 ka 280 - BAA Leabaidh an Daimh Bruidhe 57.102 3.432 - - - 313368 801963 Tor Tor summit 1147 CN 26 Al - - - 65200 7400 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 103 ka 281 - SBAF 1 Stob Bac an Fhurain 57.112 3.423 - - - 313759 803083 Tor Tor plinth 1076 CN 10 Be - - - 17800 1200 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 115 ka 281 - SBAF 2 Stob Bac an Fhurain 57.112 3.423 - - - 313759 803083 Tor Tor plinth 1076 CN 10 Be - - - 19500 1400 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 115 ka 281 - SBAF 2 Stob Bac an Fhurain 57.112 3.423 - - - 313759 803083 Tor Tor plinth 1076 CN 26 Al - - - 21200 2600 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 171 ka 282 - MCB 1 Mullach Lochan na Gabhar 57.110 3.410 - - - 314630 802952 Boulder Erratic 1070 CN 10 Be - - - 37400 2700 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 128 ka 282 - MCB 2 Mullach Lochan na Gabhar 57.110 3.410 - - - 314630 802952 Boulder Erratic 1070 CN 10 Be - - - 29500 2100 Phillips et al. 2006 (cumulative) BP Exposure time Interpreted age based on ice cover duration model 171 ka 282 - MCB 1 Mullach Lochan na Gabhar 57.110 3.410 - - - 314630 802952 Boulder Erratic 1070 CN 26 Al - - - 48700 4900 Phillips et al. 2006 (cumulative) BP

Page 12 of 19 Dates relating to the build up and retreat of the last British -Irish Ice Sheet. Version 2.0. Census date: 1 May 2012.

286 Hel-424 - Abernethy Forest 57.237 3.712 - - - 296700 817500 Sandy-gyttja Oldest limnic terrestrial sediments - 14 C 12710 270 INTCAL09 15007 552 Ice free Vasari 1977 Gray and Lowe 1977 Maximum age for deposition of overlying tills; very large 287 010801 - Nigg Bay 57.147 2.041 - - - 397528 806191 Sand Glaciofluvial outwash - OSL - - - 63000 7000 Unclassified Gemmell et al. 2008 errors so unclassified Harkness and Wilson 288 SRR-763 - Mill of Dyce 57.217 2.217 - - - 387130 814960 Organics Organic lens within glaciofluvial sand and gravels - 14 C 11640 70 MARINE09 13167 86 Advance 1979 289 - PF5 Pitfichie 57.243 2.557 - - - 366503 817097 Bedrock Surface of exposed ice-eroded or plucked bedrock 379 CN 10 Be - - - 17900 2400 Retreat Granite Phillips et al. 2008 289 - PF3 Pitfichie 57.243 2.557 - - - 366503 817097 Bedrock Surface of exposed ice-eroded or plucked bedrock 373 CN 10 Be - - - 19800 2900 Retreat Granite oldest date Phillips et al. 2008 289 - PF1 Pitfichie 57.243 2.557 - - - 366503 817097 Boulder Surface of exposed perched erratic boulder 373 CN 10 Be - - - 14600 3500 Retreat Granite Phillips et al. 2008 289 - PF4 Pitfichie 57.243 2.557 - - - 366503 817097 Boulder Surface of exposed perched erratic boulder 379 CN 10 Be - - - 17500 2600 Retreat Granite Phillips et al. 2008

290 - BEN3 Bennachie 57.292 2.562 - - - 366309 822618 Bedrock Surface of exposed ice-eroded or plucked bedrock 527 CN 10 Be - - - 29400 2900 Unclassified Granite outlier discarded from analysis as unreliable Phillips et al. 2008

290 - BEN4 Bennachie 57.293 2.561 - - - 366309 822618 Bedrock Surface of exposed ice-eroded or plucked bedrock 527 CN 10 Be - - - 19800 2000 Retreat Granite oldest date Phillips et al. 2008 291 010802 - Cross Stones 57.339 2.076 - - - 395445 827540 Sand Glaciofluvial outwash overlying till and overlain by till - OSL - - - 111000 9000 Unclassified Questionable date discarded from analysis as unreliable Gemmell et al. 2008

292 Beta-101953 - St Fergus 57.471 1.816 - - - 408899 840655 Shell Morainic topography overlies glaciomarine silt - 14 C 14750 60 MARINE09 17418 179 Advance Peacock 1999 292 Lu-3028 - St Fergus 57.456 1.852 - - - 408899 840655 Shell Morainic topography overlies glaciomarine silt - 14 C 15320 200 MARINE09 18090 125 Advance Peacock 1999 292 - - St Fergus 57.456 1.852 - - - 408899 840655 Shell Morainic topography overlies glaciomarine silt - 14 C 14880 200 MARINE09 17639 255 Advance Hall and Jarvis 1989 Sejrup et al. 1994 293 010803 - Oldmill 57.484 1.965 - - - 402088 843757 Sand Glaciodeltaic toesets overlain by till including rafts of sediment from Moray Firth - OSL - - - 74000 6000 Advance Gemmell et al. 2008 Minimum age for underlying till and glaciolacustrine 294 020803 - Toddlehills 57.501 1.890 - - - 406585 845601 Sand Glaciofluvial outwash overlying till - OSL - - - 31000 2000 Retreat sediments NO overlying till reported therefore no MIS 2 Gemmell et al. 2008 glaciation? 295 020801 - Wester Rora 57.527 1.914 - - - 405162 848529 Sand Glaciolacustrine under glaciodeltaic sand - OSL - - - 76000 5000 Unclassified Possible incomplete zeroing Gemmell et al. 2008 295 020802 - Wester Rora 57.527 1.914 - - - 405162 848529 Sand Glaciofluvial outwash - OSL - - - 101000 13000 Unclassified Questionable date Gemmell et al. 2008 296 020807 - Woodside of Auchlee 57.528 1.935 - - - 403860 848673 Sand Glaciofluvial outwash - OSL - - - 108000 8000 Unclassified Questionable date Gemmell et al. 2008 Alkali insoluble fraction; Discarded from analysis as 297 SRR-2040 - Crossbrae Farm 57.550 2.413 - - - 375300 851200 Peat Underlain by probable early Devensian till and overlain by solifluction breccia - 14 C 22380 250 INTCAL09 27134 475 Unclassified Hall 1984 Jones and Keen 1993 unreliable Alkali soluble fraction; Discarded from analysis as 297 SRR-2041 - Crossbrae Farm 57.550 2.413 - - - 375300 851200 Peat Underlain by probable early Devensian till and overlain by solifluction breccia - 14 C 26400 170 INTCAL09 31053 116 Unclassified Hall 1984 unreliable Minimum ages for Crossbrae peat bed earlier ages are 297 SRR-5706 - Crossbrae Farm 57.550 2.413 - - - 375300 851200 Humic carbon - 14 C 44030 +910 -820 INTCAL09 47171 1064 Ice free Whittington et al. 1998 unreliable Outside calibration Outside 297 SRR-5707 - Crossbrae Farm 57.550 2.413 - - - 375300 851200 Humic carbon - 14 C 47180 +1390 -1190 INTCAL09 Unclassified Whittington et al. 1998 range calibration range

298 010805 - Howe of Blyth 57.595 2.239 - - - 385708 856127 Sand Glaciofluvial outwash in upper gravels - OSL - - - 61000 4000 Unclassified No overlying till – implies ice free during Devensian? Gemmell et al. 2008

299 - MH1 Momond Hill 57.602 2.042 - - - 397609 856853 Boulder Surface of exposed perched erratic boulder 215 CN 10 Be - - - 18500 3100 Retreat Granite Phillips et al. 2008

299 - MH2 Momond Hill 57.605 2.027 - - - 398506 857224 Boulder Surface of exposed perched erratic boulder 213 CN 10 Be - - - 45600 6200 Unclassified Granite outlier discarded from analysis as unreliable Phillips et al. 2008

299 - MH3 Momond Hill 57.608 2.054 - - - 396903 857595 Boulder Surface of exposed perched erratic boulder 216 CN 10 Be - - - 20000 4300 Retreat Granite oldest date Phillips et al. 2008 No error range No error range provided so Shotton and Williams 300 Birm-191 - Gardenstown 57.668 2.345 - - - 379517 864287 Shell Overidden or transported by ice - 14 C >37350 - - provided so unable Unclassified Outer shell Sutherland 1986 unable to 1971; Peacock 1971 to calibrate calibrate No error range No error range provided so Shotton and Williams 300 Birm-191 - Gardenstown 57.668 2.345 - - - 379517 864287 Shell Overidden or transported by ice - 14 C >39500 - - provided so unable Unclassified Inner shell Sutherland 1986 unable to 1971; Peacock 1971 to calibrate calibrate Harkness and Wilson 301 SRR-322 - Moray Firth, Borehole 73/35 57.767 2.317 - - - 381143 875273 Wood Fragments from silt sediments - 14 C 15860 770 MARINE09 18630 807 Ice free 1979 Harkness and Wilson 301 SRR-323 - Moray Firth, Borehole 73/35 57.767 2.317 - - - 381143 875273 - - 14 C 16290 600 MARINE09 19061 538 Ice free 1979 Harkness and Wilson 301 SRR-324 - Moray Firth, Borehole 73/35 57.767 2.317 - - - 381143 875273 - - 14 C 14020 500 MARINE09 16391 794 Ice free 1979 Harkness and Wilson 301 SRR-325 - Moray Firth, Borehole 73/35 57.767 2.317 - - - 381143 875273 - - 14 C 16630 650 MARINE09 19435 671 Ice free 1979

302 NPL-78 - Teindland, Morayshire 57.600 3.175 - - - 329805 857217 Palaeosol Beneath glacial sediments - 14 C 28140 +480 -456 INTCAL09 32345 618 Advance Fitzpatrick 1965 Jones and Keen 1993 Caseldine and Edwards 302 UB-2209 - Teindland, Morayshire 57.600 3.175 - - - 329805 857217 Organics Soliflucted organic palaeosol horizon below glacial sediments - 14 C 38400 1000 INTCAL09 42806 742 Advance Jones and Keen 1993 1982 Caseldine and Edwards 302 UB-2121 - Teindland, Morayshire 57.600 3.175 - - - 329805 857217 Organics - 14 C 40710 2000 INTCAL09 44391 1517 Ice free Jones and Keen 1993 1982 303 OxA-2483 - Clava 57.471 4.058 - - - 276570 844100 Shell - 14 C 43800 3300 MARINE09 47022 2289 Ice free Hedges et al. 1993 CBA date list 304 OxA-1346 - Cromarty 57.622 4.365 - - - 258790 861540 Shell Marine shells within borehole, unit rests on possible glaciomarine silts - 14 C AMS 12860 130 MARINE09 14501 283 Ice free Hedges et al. 1988b CBA date list Exposure time Stone and Ballantyne 305 - BM 1 Beinn Mhor 57.262 7.298 - - - 80600 831500 Bedrock High altitude sample from above mapped trimlines 605 CN 10 Be - - - 88300 5700 (cumulative) 2005 Assuming no prior erosion and no erosion during 10 Be Stone and Ballantyne 305 - BM 2 Beinn Mhor col, S. Uist 57.270 7.287 - - - 81400 832200 Boulder Below mapped trimline 310 CN 10 Be - - - 14500 900 Retreat accumulation 2005 Exposure time Stone and Ballantyne 306 - H-1 Hecla summit 57.290 7.272 - - - 82353 834486 Bedrock High altitude sample from above mapped trimlines 605 CN 10 Be - - - 65700 4200 (cumulative) 2005 Glaciomarine unit covering outer shelf, west of and considered contemporaneous with Approximate location; contemporaneous with morainal Peacock et al. 1992; 307 - - Shelf South of St Kilda 57.348 8.459 - - - 11681 846993 Shells - 14 C 22480 300 MARINE09 26477 471 Ice free Evans et al. 2005 morainal banks on the shelf banks Hedges et al. 1988a

308 OxA-2785 - Shelf south of St Kilda 57.502 8.709 - - - -2339 865955 Shell Top of proximal glaciomarine sediment unit - 14 C 15650 160 MARINE09 18199 95 Ice free Vibrocore 57/-09/89 collected from morainal bank Peacock et al. 1992 Residual fraction. Regarded as a minimum age for the 309 SRR-1809b - Hirta, St Kilda 57.816 8.609 - - - 7772 899841 Organic sand Organic sand unit below periglacial head deposits - 14 C 24710 +1470 -1240 INTCAL09 29503 1408 Ice free unit. Limiting age of interstadial conditions separating Sutherland et al. 1984 Jones and Keen 1993 local valley glaciations 309 SRR-1809a - Hirta, St Kilda 57.816 8.609 - - - 7772 899841 Organic sand Organic sand unit below periglacial head deposits - 14 C 14620 180 INTCAL09 17768 265 Unclassified Humic acid fraction. Contaminated. Sutherland et al. 1984

Age assuming no prior erosion and no erosion during 10 Be Stone and Ballantyne 310 - 015-NH Leac a'Li, South Harris 57.832 6.828 - - - 113400 892600 Boulder Ice moulded whalebacks below mapped trimline 118 CN 10 Be - - - 15400 1000 Retreat accumulation 2005 Stone and Ballantyne 310 - 016-NH Leac a'Li, South Harris 57.833 6.827 - - - 113401 892600 Boulder Ice moulded whalebacks below mapped trimline 122 CN 10 Be - - - 22600 1400 Unclassified Considered erroneous due to inheritance 2005 Age assuming no prior erosion and no erosion during 10 Be Stone and Ballantyne 311 - 023-NH Meavag, South Harris 57.870 6.812 - - - 114700 896700 Boulder Ice moulded whalebacks below mapped trimline 70 CN 10 Be - - - 16200 1000 Retreat accumulation 2005 Age assuming no prior erosion and no erosion during 10 Be Stone and Ballantyne 312 - 017-NH Carragreich, Harris 57.893 6.740 - - - 119200 899100 Boulder Ice moulded whalebacks below mapped trimline 135 CN 10 Be - - - 17600 1100 Retreat accumulation 2005 Stone and Ballantyne 312 - 019-NH Carragreich, Harris 57.893 6.740 - - - 119200 899100 Boulder Ice moulded whalebacks below mapped trimline 152 CN 10 Be - - - 20900 1300 Unclassified Considered erroneous due to inheritance 2005

Age assuming no prior erosion and no erosion during 10 Be Stone and Ballantyne 313 - NH-5 Tarsaval summit, Harris 57.952 6.819 - - - 115000 905600 Boulder Below mapped trimline 370 CN 10 Be - - - 19300 1500 Unclassified accumulation. Considered erroneous due to inheritance 2005

Page 13 of 19 Dates relating to the build up and retreat of the last British -Irish Ice Sheet. Version 2.0. Census date: 1 May 2012.

Age assuming no prior erosion and no erosion during 10 Be Stone and Ballantyne 313 - NH-6 Tarsaval summit, Harris 57.952 6.819 - - - 115000 905600 Boulder Below mapped trimline 370 CN 10 Be - - - 19300 1200 Unclassified accumulation. Considered erroneous due to inheritance 2005 Exposure time Stone and Ballantyne 314 - NH-1 Clisham summit 57.968 6.812 - - - 115486 907887 Bedrock High altitude sample from above mapped trimlines 790 CN 10 Be - - - 91200 6200 (cumulative) 2005 Exposure time Stone and Ballantyne 314 - NH-2 Clisham summit 57.968 6.812 - - - 115486 907887 Bedrock High altitude sample from above mapped trimlines 790 CN 10 Be - - - 35300 2300 (cumulative) 2005 Age assuming no prior erosion and no erosion during 10 Be Stone and Ballantyne 315 - NH-4 Oreval col, North Harris 57.976 6.937 - - - 108200 908800 Boulder Below mapped trimline 425 CN 10 Be - - - 14100 900 Retreat accumulation 2005 Exposure time Age assuming no prior erosion and no erosion during 10 Be Stone and Ballantyne 316 - NH-3 Oreval summit, Harris 57.987 6.937 - - - 108300 910000 Boulder Above mapped trimline 662 CN 10 Be - - - 14200 900 (cumulative) accumulation 2005 von Weymarn and Jones and Keen 1993; 317 SRR-87 - Tolsta Head, Isle of Lewis 58.152 6.469 - - - 137111 926815 Organics Lake detritus underlying late Devensian till - 14 C 27333 240 INTCAL09 31461 180 Advance Edwards 1973 Evans et al. 2005

318 OxA-1757 - Stornoway 58.212 6.386 - - - 142419 933182 Shell 25.74-26.00 m Interpreted as base of Loch Lomond Stadial in this borehole (J.D. Peacock) - 14 C 11260 120 MARINE09 12745 123 Ice free Approximate location Hedges et al. 1989 CBA date list 36.99-37.29 m Lowest sample in borehole immediately overlies unit with Arctic fauna 318 OxA-1754 - Stornoway 58.212 6.386 - - - 142419 933182 Shell - 14 C 13185 140 MARINE09 15243 363 Retreat Hedges et al. 1989 CBA date list (correlated with 'Errol beds' of eastern Scotland) (J.D. Peacock) 29.30-29.60 m Unit contains temperate fauna and interpreted as warm espisode following 318 OxA-1753 - Stornoway 58.212 6.386 - - - 142419 933182 Shell - 14 C 11650 130 MARINE09 13166 114 Ice free Approximate location; short lived warm episode Hedges et al. 1989 CBA date list Windermere Interstadial (J.D. Peacock) Sutherland and Walker 319 SRR 2367 - Garrabost, Lewis 58.218 6.222 - - - 152063 933182 Shell Middle/base of glacial deposits - 14 C 23000 320 MARINE09 27309 463 Advance Inner shell Sutherland 1986 1984 Sutherland and Walker 319 SRR 2367 - Garrabost, Lewis 58.218 6.222 - - - 152063 933182 Shell Middle/base of glacial deposits - 14 C 26300 230 MARINE09 30694 216 Advance Outer shell Sutherland 1986 1984 Sutherland and Walker 320 SRR2370 - Peicir, Lewis 58.417 6.329 - - - 147241 955685 Shell Middle/base of glacial deposits - 14 C 35630 +1520 -1270 MARINE09 40194 1493 Advance Inner shell Sutherland 1986 1984 Sutherland and Walker 320 SRR2370 - Peicir, Lewis 58.417 6.329 - - - 147241 955685 Shell Middle/base of glacial deposits - 14 C 37320 +1130 -990 MARINE09 41795 912 Advance Outer shell Sutherland 1986 1984 Sutherland and Walker 321 SRR 2368 - West Dell, Lewis 58.475 6.308 - - - 148848 962114 Shell Middle/base of glacial deposits - 14 C 34470 +720 -660 MARINE09 39233 881 Advance Inner shell Sutherland 1986 1984 Sutherland and Walker 321 SRR 2368 - West Dell, Lewis 58.475 6.308 - - - 148848 962114 Shell Middle/base of glacial deposits - 14 C 37070 +970 -860 MARINE09 41609 794 Advance Outer shell Sutherland 1986 1984 Sutherland and Walker 322 SRR 2369 - Traigh Chumil, Lewis 58.504 6.312 - - - 148848 965329 Shell Middle/base of glacial deposits - 14 C 39500 +1270 -1099 MARINE09 43352 907 Advance Inner shell Sutherland 1986 1984 Sutherland and Walker 322 SRR 2369 - Traigh Chumil, Lewis 58.504 6.312 - - - 148848 965329 Shell Middle/base of glacial deposits - 14 C 39850 +1270 -1100 MARINE09 43573 904 Advance Outer shell Sutherland 1986 1984

323 - ST-1 Trotternish, Isle of Skye 57.500 6.188 - - - 149100 853200 Bedrock Outcrop below weathering limit 450 CN 36 Cl - - - 17400 1300 Retreat 36 Cl date of basalt outcrop Ballantyne et al. 1998a

323 - ST-2 Trotternish, Isle of Skye 57.500 6.187 - - - 149200 853200 Bedrock Outcrop below weathering limit 440 CN 36 Cl - - - 17600 1400 Retreat Basalt oldest date Ballantyne et al. 1998a Exposure time 323 - ST-3 Trotternish, Isle of Skye 57.509 6.184 - - - 149500 854200 Bedrock Outcrop above mapped trimline 700 CN 36 Cl - - - 70300 1300 Basalt Ballantyne et al. 1998a (cumulative) Exposure time 323 - St-4 Trotternish, Isle of Skye 57.512 6.186 - - - 149400 854600 Bedrock Outcrop above mapped trimline 640 CN 36 Cl - - - 50200 3300 Basalt Ballantyne et al. 1998a (cumulative)

324 - AM-01 Applecross Moraine 57.507 5.748 - - - 175500 852450 Boulder Moraine crest 250 CN 10 Be - - - 12840 1170 Margin Torridon sandstone Lm scaling Ballantyne et al. 2009b

324 - AM-03 Applecross Moraine 57.507 5.748 - - - 175490 852500 Boulder Moraine crest 248 CN 10 Be - - - 12790 1180 Margin Torridon sandstone Lm scaling Ballantyne et al. 2009b

324 - AM-04 Applecross Moraine 57.507 5.748 - - - 175490 852470 Boulder Moraine crest 248 CN 10 Be - - - 13300 1250 Margin Torridon sandstone Lm scaling Ballantyne et al. 2009b

324 - AM-05 Applecross Moraine 57.507 5.748 - - - 175540 852480 Boulder Moraine crest 250 CN 10 Be - - - 14580 1350 Margin Torridon sandstone Lm scaling Ballantyne et al. 2009b

325 - RM-01 Redpoint Moraine 57.631 5.649 - - - 182170 865960 Boulder Moraine crest 343 CN 10 Be - - - 13460 1240 Margin Torridon sandstone Lm scaling Ballantyne et al. 2009b

325 - RM-02 Redpoint Moraine 57.632 5.659 - - - 181610 866070 Boulder Moraine crest 330 CN 10 Be - - - 13400 1230 Margin Torridon sandstone Lm scaling Ballantyne et al. 2009b

325 - RM-03 Redpoint Moraine 57.633 5.659 - - - 181600 866060 Boulder Moraine crest 324 CN 10 Be - - - 14230 1310 Margin Torridon sandstone Lm scaling Ballantyne et al. 2009b

325 - RM-04 Redpoint Moraine 57.675 5.712 - - - 178750 871090 Boulder Moraine crest 244 CN 10 Be - - - 13650 1270 Margin Torridon sandstone Lm scaling Ballantyne et al. 2009b Ballantyne and Stone 326 - CF-01 Baosbheinn 57.649 5.594 - - - 185550 867750 Boulder Rockfall partly overlying 'Wester Ross moraine' 478 CN 10 Be - - - 13180 1170 Retreat Lm scaling 2009 Ballantyne and Stone 326 - CF-02 Baosbheinn 57.648 5.596 - - - 185430 867680 Boulder Rockfall partly overlying 'Wester Ross moraine' 467 CN 10 Be - - - 13490 1210 Retreat Lm scaling 2009 Ballantyne and Stone 326 - CF-03 Baosbheinn 57.648 5.597 - - - 185410 867700 Boulder Rockfall partly overlying 'Wester Ross moraine' 464 CN 10 Be - - - 11720 1020 Retreat Lm scaling 2009 Torridon sandstone, inside Wester Ross Readvance limit 327 - BR-01 Creag an Fhithich 57.658 5.595 - - - 185580 868740 Bedrock Plucked lee side of glacially scoured bedrock surface 290 CN 10 Be - - - 12240 1130 Retreat Ballantyne et al. 2009b Lm scaling Torridon sandstone, inside Wester Ross Readvance limit 327 - BR-02 Creag an Fhithich 57.658 5.595 - - - 185581 868741 Bedrock Plucked lee side of glacially scoured bedrock surface 286 CN 10 Be - - - 14550 1350 Retreat Ballantyne et al. 2009b Lm scaling

328 Q-457 - Loch Droma 57.761 5.006 - - - 221179 878532 Silt Oldest limnic terrestrial sediments - 14 C 12814 155 INTCAL09 15287 371 Ice free Minimum age for 'Wester Ross Readvance' Kirk and Godwin 1963 Gray and Lowe 1977

329 - WRR/4 Gairloch Moraine 57.751 5.745 - - - 177206 879563 Boulder On surface of moraine close to or at moraine crest 65 CN 10 Be - - - 15532 2429 Margin Everest et al. 2006 329 - WRR/6 Gairloch Moraine 57.760 5.738 - - - 177651 880643 Boulder On surface of moraine close to or at moraine crest 80 CN 10 Be - - - 16087 2885 Margin Everest et al. 2006 329 - WRR/7 Gairloch Moraine 57.761 5.737 - - - 177717 880694 Boulder On surface of moraine close to or at moraine crest 80 CN 10 Be - - - 17943 3087 Margin Everest et al. 2006 329 - WRR/8 Gairloch Moraine 57.762 5.736 - - - 177768 880782 Boulder On surface of moraine close to or at moraine crest 90 CN 10 Be - - - 12526 1817 Unclassified Regarded as unreliable Everest et al. 2006

329 - GM-02 Gairloch Moraine 57.762 5.733 - - - 177960 880830 Boulder Moraine crest 91 CN 10 Be - - - 12790 1170 Margin Torridon sandstone Lm scaling Ballantyne et al. 2009b

329 - GM-03 Gairloch Moraine 57.764 5.721 - - - 178710 881000 Boulder Moraine crest 134 CN 10 Be - - - 14490 1340 Margin Torridon sandstone Lm scaling Ballantyne et al. 2009b

329 - GM-06 Gairloch Moraine 57.787 5.708 - - - 179590 883540 Boulder Moraine crest 235 CN 10 Be - - - 13220 1220 Margin Torridon sandstone Lm scaling Ballantyne et al. 2009b

330 - - Cnoc Breac Moraine 57.786 5.712 - - - 179388 883345 Boulder On surface of moraine close to or at moraine crest - CN 10 Be - - - 11900 3000 Unclassified Approx location, dismissed as outliers Everest et al. 2006 330 - - Cnoc Breac Moraine 57.786 5.712 - - - 179388 883345 Boulder On surface of moraine close to or at moraine crest - CN 10 Be - - - 23100 4000 Margin Everest et al. 2006

331 - AT-4 An Teallach 57.829 5.236 - - - 207900 886700 Bedrock Below 'trimline' 600 CN 10 Be - - - 13900 1300 Retreat Sandstone Ballantyne et al. 1998b

331 - AT-3 An Teallach 57.830 5.234 - - - 208000 886800 Bedrock Below 'trimline' 600 CN 10 Be - - - 14700 1300 Retreat Oldest date sandstone Ballantyne et al. 1998b

331 - AT-1 An Teallach 57.831 5.232 - - - 208100 886900 Bedrock Below 'trimline' 605 CN 10 Be - - - 14400 1300 Retreat Sandstone Ballantyne et al. 1998b Exposure time 331 - AT-5 An Teallach 57.827 5.264 - - - 206300 886600 Bedrock Above mapped trimline 810 CN 10 Be - - - 49400 4700 Sandstone Ballantyne et al. 1998b (cumulative) Exposure time 331 - AT-6 An Teallach 57.826 5.262 - - - 206400 886500 Bedrock Above mapped trimline 800 CN 10 Be - - - 31200 2900 Sandstone Ballantyne et al. 1998b (cumulative) Exposure time 331 - AT-7 An Teallach 57.825 5.258 - - - 206600 886400 Bedrock Above mapped trimline 760 CN 10 Be - - - 59000 5200 Sandstone Ballantyne et al. 1998b (cumulative) Exposure time 331 - AT-8 An Teallach 57.825 5.258 - - - 206600 886400 Bedrock Above mapped trimline 760 CN 10 Be - - - 54400 4800 Sandstone Ballantyne et al. 1998b (cumulative) Exposure time 331 - AT-9 An Teallach 57.816 5.244 - - - 207400 885300 Bedrock Above mapped trimline 930 CN 10 Be - - - 22600 2400 Sandstone Ballantyne et al. 1998b (cumulative)

332 - LLB1 Sail Mhor 57.856 5.324 - - - 202824 890011 Boulder Resting on crest of lateral moraine 250 CN 10 Be - - - 13400 1600 Margin Bradwell et al. 2008a Regarded by authors as outlier reflecting boulder 332 - LLB2 Sail Mhor 57.857 5.326 - - - 202663 890090 Boulder Resting on crest of lateral moraine 235 CN 10 Be - - - 10300 1100 Unclassified Bradwell et al. 2008a instability or rockfall event Regarded by authors as outlier reflecting boulder 332 - LLB3 Sail Mhor 57.858 5.328 - - - 202577 890214 Boulder Resting on crest of lateral moraine 220 CN 10 Be - - - 6800 800 Unclassified Bradwell et al. 2008a instability or rockfall event

332 - LLB4 Sail Mhor 57.860 5.334 - - - 202225 890542 Boulder Resting on crest of lateral moraine 200 CN 10 Be - - - 13500 1600 Margin Bradwell et al. 2008a Torridon sandstone, inside 'Wester Ross Readvance' limit 333 - BR-03 Meall na h-Uamhaidh 57.855 5.704 - - - 180270 891040 Bedrock Plucked lee side of glacially scoured bedrock surface 100 CN 10 Be - - - 15990 1490 Retreat Ballantyne et al. 2009b Lm scaling Torridon sandstone, inside 'Wester Ross Readvance' limit 333 - BR-04 Meall na h-Uamhaidh 57.855 5.704 - - - 180271 891041 Bedrock Plucked lee side of glacially scoured bedrock surface 101 CN 10 Be - - - 15350 1420 Retreat Ballantyne et al. 2009b Lm scaling Torridon sandstone, inside 'Wester Ross Readvance' limit 333 - BR-05 Meall na h-Uamhaidh 57.855 5.704 - - - 180272 891090 Bedrock Plucked lee side of glacially scoured bedrock surface 108 CN 10 Be - - - 14460 1340 Retreat Ballantyne et al. 2009b Lm scaling

334 - ACH1 Achiltibuie 58.013 5.291 - - - 205485 907367 Boulder Crest of moraine ridge 255 CN 10 Be - - - 13800 1400 Margin Bradwell et al. 2008a

334 - ACH2 Achiltibuie 58.013 5.292 - - - 205486 907367 Boulder Crest of moraine ridge 250 CN 10 Be - - - 13700 1400 Margin Bradwell et al. 2008a

334 - ACH3 Achiltibuie 58.013 5.293 - - - 205518 907380 Boulder Crest of moraine ridge 240 CN 10 Be - - - 13300 1400 Margin Bradwell et al. 2008a

335 - AC-01 Achiltibuie Moraine 57.985 5.262 - - - 207190 904220 Boulder Boulders marking the ice limit on southern flank of Ben Mor Coigach 329 CN 10 Be - - - 13450 1250 Margin Torridon sandstone Lm scaling Ballantyne et al. 2009b

Page 14 of 19 Dates relating to the build up and retreat of the last British -Irish Ice Sheet. Version 2.0. Census date: 1 May 2012.

335 - AC-02 Achiltibuie Moraine 57.983 5.259 - - - 207320 903960 Boulder Boulders marking the ice limit on southern flank of Ben Mor Coigach 312 CN 10 Be - - - 13330 1230 Margin Torridon sandstone Lm scaling Ballantyne et al. 2009b

335 - AC-03 Achiltibuie Moraine 57.985 5.260 - - - 207200 904220 Boulder Boulders marking the ice limit on southern flank of Ben Mor Coigach 329 CN 10 Be - - - 13000 1200 Margin Torridon sandstone Lm scaling Ballantyne et al. 2009b

336 - - Assynt 58.080 4.943 - - - 226493 913833 Speleothems Cave - U - - - 26000 3000 Unclassified Large errors Atkinson et al. 1986 Jones and Keen 1993

336 - - Assynt 58.080 4.943 - - - 226493 913833 Speleothems Cave - U - - - 30000 4000 Unclassified Large errors Atkinson et al. 1986 Jones and Keen 1993

336 - - Assynt 58.080 4.943 - - - 226493 913833 Speleothems Cave - U - - - 38000 6000 Unclassified Large errors Atkinson et al. 1986 Jones and Keen 1993

337 SRR-253 - Cam Loch 58.092 5.061 - - - 219572 915501 Organic Silt Oldest limnic terrestrial sediments - 14 C 12956 240 INTCAL09 15658 544 Ice free Basal late glacial date Pennington 1975 Gray and Lowe 1977

338 SRR-2104 - Reindeer Cave, Assynt 58.108 4.940 - - - 226800 917000 Antler Cave - 14 C 24590 +790 -720 INTCAL09 29423 794 Ice free Minimum age for ice free conditions around cave Lawson 1984 Sutherland 1984

338 SRR-2103 - Reindeer Cave, Assynt 58.108 4.940 - - - 226800 917000 Antler Cave - 14 C 25360 +810 -740 INTCAL09 30191 705 Ice free Lawson 1984 Jones and Keen 1993

338 OxA-3792 - Reindeer Cave, Assynt 58.108 4.940 - - - 226800 917000 Antler Cave - 14 C 22300 240 INTCAL09 26670 367 Unclassified Young relative to rest of assemblage Hedges et al. 1994 CBA date list 338 OxA-3984 - Reindeer Cave, Assynt 58.108 4.940 - - - 226800 917000 Antler Cave - 14 C 28240 390 INTCAL09 32485 558 Ice free Hedges et al. 1994 CBA date list 338 OxA-3787 - Reindeer Cave, Assynt 58.108 4.940 - - - 226800 917000 Antler Cave - 14 C 28800 450 INTCAL09 33407 716 Ice free Minimum age for ice free conditions around cave CBA date list 338 OxA-3985 - Reindeer Cave, Assynt 58.108 4.940 - - - 226800 917000 Antler Cave - 14 C 31490 570 INTCAL09 35684 363 Ice free CBA date list 338 OxA-3786 - Reindeer Cave, Assynt 58.108 4.940 - - - 226800 917000 Antler Cave - 14 C 31580 520 INTCAL09 35683 335 Ice free CBA date list

339 - LV0601 Loanan Valley 58.124 4.981 - - - 224444 918847 Boulder Crest of recessional moraine ridge 105 CN 10 Be - - - 14100 1400 Margin Bradwell et al. 2008a

339 - LV0602 Loanan Valley 58.124 4.981 - - - 224444 918847 Boulder Crest of recessional moraine ridge 105 CN 10 Be - - - 12900 1300 Margin Bradwell et al. 2008a

339 - LV0603 Loanan Valley 58.124 4.981 - - - 224444 918847 Boulder Crest of recessional moraine ridge 105 CN 10 Be - - - 13600 1300 Margin Bradwell et al. 2008a Exposure time 340 - Smean 1 Smean 58.227 3.646 - - - 303400 927600 Boulder Tor above maximum altitude of evidence of glacial erosion 498 CN 10 Be - - - 146600 15100 Ballantyne and Hall 2008 (cumulative) Exposure time 340 - Smean 3 Smean 58.226 3.650 - - - 303200 927600 Boulder Tor above maximum altitude of evidence of glacial erosion 503 CN 10 Be - - - 178200 18100 Ballantyne and Hall 2008 (cumulative) 341 - SCAR1 Scaraben 58.235 3.563 - - - 308321 928429 Boulder Large erratic boulder. Oldest date 305 CN 10 Be - - - 18500 2400 Retreat Quartzite Phillips et al. 2008 No error range No error range provided so Harkness and Wilson 342 SRR-487 - Moray Firth, Borehole 74/17 58.217 3.217 - - - 328509 925969 Shell Marine shells within glacial marine deposit. Overidden or transported by ice - 14 C >43450 - - provided so unable Unclassified Sutherland 1986 unable to 1979 to calibrate calibrate No error range No error range provided so Harkness and Wilson 342 SRR-488 - Moray Firth, Borehole 74/17 58.217 3.217 - - - 328509 925969 Shell Marine shells within glacial marine deposit. Overidden or transported by ice - 14 C >43450 - - provided so unable Unclassified Sutherland 1986 unable to 1979 to calibrate calibrate No error range No error range provided so Harkness and Wilson 342 SRR-626 - Moray Firth, Borehole 74/17 58.217 3.217 - - - 328509 925969 Shell Marine shells within glacial marine deposit. Overidden or transported by ice - 14 C >36170 - - provided so unable Unclassified Sutherland 1986 unable to 1979 to calibrate calibrate Harkness and Wilson 343 SRR-627 - Moray Firth, Borehole 74/18 58.167 2.950 - - - 344115 920151 Shell Undisturbed by glacial action - 14 C 12400 100 MARINE09 13858 110 Ice free Sutherland 1986 1979

344 - CAITH6 Clyth 58.326 3.195 - - - 330112 938171 Boulder Erratic boulder on glacially striated sandstone 87 CN 10 Be - - - 11200 1300 Unclassified Sandstone outlier discarded from analysis as unreliable Phillips et al. 2008

344 - CAITH5 Clyth 58.326 3.195 - - - 330112 938171 Bedrock Striated bedrock 87 CN 10 Be - - - 10400 1300 Retreat Sandstone Phillips et al. 2008 344 - CAITH8 Clyth 58.326 3.195 - - - 330112 938171 Boulder Erratic boulder on glacially striated sandstone 91 CN 10 Be - - - 14300 1500 Retreat Sandstone, oldest date Phillips et al. 2008 344 - CAITH7 Clyth 58.326 3.195 - - - 330112 938171 Bedrock Striated bedrock 91 CN 10 Be - - - 13100 1400 Retreat Sandstone Phillips et al. 2008 Quartzite; Mismatch between map location and 345 - MOR2 Morven 58.220 3.720 - - - 299060 926982 Bedrock Ice moulded bedrock on col 445 CN 10 Be - - - 16600 2100 Retreat latitude/longitude given in paper, location derived from Phillips et al. 2008 map Quartzite oldest date; Mismatch between map location 345 - MOR1 Morven 58.220 3.720 - - - 299060 926982 Bedrock Ice moulded bedrock on col 445 CN 10 Be - - - 17200 2500 Retreat and latitude/longitude given in paper, location derived Phillips et al. 2008 from map 346 - CAITH12 Hill of Yarrows 58.365 3.188 - - - 330205 941301 Boulder Erratic boulder on glacially striated sandstone 160 CN 10 Be - - - 16700 1700 Retreat Sandstone Phillips et al. 2008 346 - CAITH13 Hill of Yarrows 58.355 3.194 - - - 330205 941301 Bedrock Glacially striated bedrock 125 CN 10 Be - - - 17200 3000 Retreat Sandstone oldest date Phillips et al. 2008 No error range No error range provided so Shotton and Williams 347 Birm-179 - Gills Bay 58.579 3.164 - - - 332200 973300 Shell Overidden or transported by ice - 14 C >34700 - - provided so unable Unclassified Outer shell Sutherland 1986 unable to 1971 to calibrate calibrate No error range No error range provided so Shotton and Williams 347 Birm-179 - Gills Bay 58.579 3.164 - - - 332200 973300 Shell Overidden or transported by ice - 14 C >40800 - - provided so unable Unclassified Inner shell Sutherland 1986 unable to 1971 to calibrate calibrate 348 - CAITH9 Dunnett Head 58.657 3.382 - - - 319913 975221 Bedrock Striated bedrock 90 CN 10 Be - - - 15300 1900 Retreat Sandstone oldest date Phillips et al. 2008 348 - CAITH11 Dunnett Head 58.660 3.381 - - - 319998 975548 Boulder Erratic boulder on glacially striated sandstone 103 CN 10 Be - - - 14600 1500 Retreat Sandstone Phillips et al. 2008

348 - CAITH10 Dunnett Head 58.661 3.380 - - - 320052 975617 Boulder Erratic boulder on glacially striated sandstone 111 CN 10 Be - - - 53300 5400 Unclassified Sandstone outlier discarded from analysis as unreliable Phillips et al. 2008

349 - WH2 Ward Hill 58.892 3.362 - - - 321625 1001280 Bedrock Glacially smoothed bedrock 412 CN 10 Be - - - 29300 2900 Unclassified Sandstone outlier discarded from analysis as unreliable Phillips et al. 2008

349 - WH1 Ward Hill 58.903 3.340 - - - 322899 1002553 Boulder Glacially smoothed bedrock 467 CN 10 Be - - - 17000 1700 Retreat Sandstone oldest date Phillips et al. 2008

350 - ORK-19 Dwarfie Hamars 58.885 3.312 - - - 324400 1000500 Boulder From moraine belt 76 CN 10 Be - - - 12400 1500 Margin Sandstone Ballantyne et al. 2007b

350 - ORK-20 Dwarfie Hamars 58.887 3.312 - - - 324400 1000500 Boulder From moraine belt 64 CN 10 Be - - - 11600 1600 Margin Sandstone Ballantyne et al. 2007b

351 - ORK-15 Enegars 58.920 3.386 - - - 320300 1004500 Boulder Crest of end moraine 105 CN 10 Be - - - 10400 1700 Margin Sandstone Ballantyne et al. 2007b

351 - ORK-16 Enegars 58.920 3.386 - - - 320300 1004400 Boulder Crest of end moraine 129 CN 10 Be - - - 11700 1500 Margin Sandstone Ballantyne et al. 2007b

351 - ORK-18 Enegars 58.918 3.385 - - - 320400 1004400 Boulder Crest of end moraine 131 CN 10 Be - - - 11900 1200 Margin Sandstone Ballantyne et al. 2007b

352 - ORK4 Stromness 58.968 3.305 - - - 325054 1009677 Bedrock Glacially streamlined bedrock 98 CN 10 Be - - - 12800 2000 Retreat Quartz vein Phillips et al. 2008 352 - ORK3 Stromness 58.968 3.305 - - - 325054 1009677 Bedrock Glacially streamlined bedrock 98 CN 10 Be - - - 14800 2400 Retreat Gneiss Phillips et al. 2008 352 - ORK2 Stromness 58.968 3.305 - - - 325054 1009677 Boulder Erratic 98 CN 10 Be - - - 17900 2400 Retreat Gneiss Phillips et al. 2008 352 - ORK1 Stromness 58.968 3.306 - - - 325054 1009677 Boulder Erratic 98 CN 10 Be - - - 13700 2000 Retreat Gneiss Phillips et al. 2008 353 - ORK13 Yesnaby 59.008 3.337 - - - 323326 1014251 Boulder Erratic boulder train resting on smoothed bedrock 110 CN 10 Be - - - 13700 2200 Retreat Gneiss Phillips et al. 2008 353 - ORK14 Yesnaby 59.009 3.336 - - - 323326 1014251 Boulder Erratic boulder train resting on smoothed bedrock 101 CN 10 Be - - - 14100 2200 Retreat Gneiss Phillips et al. 2008 353 - ORK11 Yesnaby 59.013 3.331 - - - 323326 1014251 Boulder Erratic boulder train resting on smoothed bedrock 64 CN 10 Be - - - 11800 1800 Unclassified Sandstone outlier Phillips et al. 2008 353 - ORK12 Yesnaby 59.013 3.330 - - - 323326 1014251 Boulder Erratic boulder train resting on smoothed bedrock 68 CN 10 Be - - - 14100 2200 Retreat Sandstone Phillips et al. 2008 354 T-1152 - Mill Bay 59.109 2.568 - - - 367448 1024801 Shell Shell fragments within till: i.e. transported or overidden by glacier ice - 14 C 38300 +2100 -1800 MARINE09 42538 1733 Unclassified Outer shell. Regarded as unreliable. Rae 1976 Sutherland 1986 No error range No error range provided so 354 T-1152 - Mill Bay 59.109 2.568 - - - 367448 1024801 Shell Shell fragments within till: i.e. transported or overidden by glacier ice - 14 C >44300 0 - provided so unable Unclassified Inner shell. unable to to calibrate calibrate 355 - - Lang Lochs 60.127 1.228 - - - 443000 1138300 Organics Mineral inwash with organic content at base of lake sediments - 14 C 13200 100 INTCAL09 16181 332 Ice free Hulme and Durno 1980 Birnie et al.1993

356 St-1640 - Loch of Clickhimin 60.151 1.162 - - - 446500 1141000 Organics Gyttja from bed below thick clay at base of organic section - 14 C 12090 900 INTCAL09 14357 1284 Ice free Minimum date for deglaciation Hoppe 1974 Andersen et al. 1981

357 St-1554 - Sandwater 60.200 1.138 - - - 447759 1146472 Organics Sediment from base of organic section - 14 C 10055 300 INTCAL09 11666 465 Ice free Minimum for deglaciation Hoppe 1974 Andersen et al. 1981

358 St1714 - Tresta 60.242 1.353 - - - 435900 1151000 Peat Within clay - 14 C 11135 135 INTCAL09 13017 160 Ice free Hoppe 1972 Birnie et al.1993 Possible contamination discarded from analysis as Mykura and Phemister 359 SRR 4769 - Sel Ayre 60.270 1.682 - - - 417600 1154000 Humic Top Organic band with sand and gravel overlies breccia and till units - 14 C 22450 80 INTCAL09 26956 128 Unclassified Birnie et al. 1993 unreliable 1976

360 St-1757 - Loch Brouster 60.333 1.672 - - - 418086 1160975 Organics Non glacial deposit - 14 C 15080 850 INTCAL09 18084 882 Unclassified Possibly contaminated with old carbon Andersen et al. 1981 Too young based on pollen spectra in peat discarded from 361 T 1092 - Fugla Ness 60.604 1.430 - - - 431200 1191300 Peat Peat overlies till, and overlain by breccia and another till - 14 C 34000 +900 -800 INTCAL09 38905 1197 Unclassified Page 1972 Birnie et al. 1993 analysis as unreliable Too young based on pollen spectra in peat discarded from 361 T1093 - Fugla Ness 60.604 1.430 - - - 431200 1191300 Peat Peat overlies till, and overlain by breccia and another till - 14 C 37000 +1200 -1100 INTCAL09 41849 972 Unclassified Birnie et al. 1993 analysis as unreliable Too young based on pollen spectra in peat discarded from 361 - - Fugla Ness 60.604 1.430 - - - 431200 1191300 Wood Peat overlies till, and overlain by breccia and another till - 14 C 38980 +950 -850 INTCAL09 43289 714 Unclassified Harkness 1981 Birnie et al. 1993 analysis as unreliable Too young based on pollen spectra in peat discarded from Mykura and Phemister 361 SRR 59 - Fugla Ness 60.604 1.430 - - - 431200 1191300 Peat Peat overlies till, and overlain by breccia and another till - 14 C 40000 +2000 -1600 INTCAL09 43937 1458 Unclassified Birnie et al. 1993 analysis as unreliable 1976 Too young based on pollen spectra in peat discarded from 361 - - Fugla Ness 60.604 1.430 - - - 431200 1191300 Wood Peat overlies till, and overlain by breccia and another till - 14 C 43970 +1270 -1020 INTCAL09 47206 1298 Unclassified Birnie et al. 1993 analysis as unreliable Too young based on pollen spectra in peat discarded from 361 - - Fugla Ness 60.604 1.430 - - - 431200 1191300 Wood Peat overlies till, and overlain by breccia and another till - 14 C 44970 +1450 -1230 INTCAL09 48124 1311 Unclassified Birnie et al. 1993 analysis as unreliable

Page 15 of 19 Dates relating to the build up and retreat of the last British -Irish Ice Sheet. Version 2.0. Census date: 1 May 2012.

362 SRR-637 - Aberdeen Ground Beds 56.543 -2.540 - - - 645990 746165 Wood Within cold shallow marine sediments - 14 C 32682 +530 -500 INTCAL09 37290 674 Ice free Andersen et al. 1981

Outside calibration Outside 362 SRR-630 - Aberdeen Ground Beds 56.543 -2.540 - - - 645990 746165 Wood Within cold shallow marine sediments - 14 C 47750 +1940 -1560 INTCAL09 Unclassified Andersen et al. 1981 range calibration range Borehole 74/7, inverted sequence of dates, regarded as Sutherland 1984; 363 SRR-635 - Marr Bank Beds 56.952 1.123 - - - 453338 784930 Wood Lignite within marine sediments 15.5-17.5 m depth - 14 C 17730 480 INTCAL09 20993 619 Unclassified unreliable by Sejrup et al. (1994), take 15.3 ka as minimum Harkness and Wilson Andersen et al. 1981 date for deglaciation 1979 Borehole 74/7, inverted sequence of dates, regarded as Sutherland 1984; 363 SRR-624 - Marr Bank Beds 56.952 1.123 - - - 453338 784930 Wood Lignite within marine sediments 23.5-25 m depth - 14 C 21710 680 INTCAL09 25969 939 Unclassified unreliable by Sejrup et al. (1994), take 15.3 ka as minimum Harkness and Wilson Andersen et al. 1981 date for deglaciation 1979 Borehole 74/7, inverted sequence of dates, regarded as Sejrup et al. 1994; 363 SRR-623 - Marr Bank Beds 56.952 1.123 - - - 453338 784930 Wood Lignite within marine sediments 25-28.5 m depth - 14 C 13170 400 INTCAL09 16007 605 Ice free unreliable by Sejrup et al. (1994), take 15.3 ka as minimum Harkness and Wilson date for deglaciation 1979 364 TUa-274 - North Sea core Sleipner/B2001 58.390 - 1.728 - - 617835 950607 Shell fragment Within till unit, core B2001/Sleipner - 14 C AMS 33190 550 MARINE09 37383 677 Advance Glaciation covering this core after this time Sejrup et al. 1994 365 TUa-142 - North Sea Fladen Ground core 77/2 58.492 - 0.505 - - 546028 958676 Foram mixed Fine grained glaciomarine unit, no drop stones, overlain by coarser unit - 14 C AMS 13855 460 MARINE09 16226 721 Ice free In situ 2.5 m Sejrup et al. 1994 365 TUa-138 - North Sea Fladen Ground core 77/2 58.492 - 0.505 - - 546028 958676 Foram mixed Fine grained glaciomarine unit, no drop stones, overlain by coarser unit - 14 C AMS 14610 165 MARINE09 17291 236 Ice free In situ 2.8 m Sejrup et al. 1994 365 TUa-140 - North Sea Fladen Ground core 77/2 58.492 - 0.505 - - 546028 958676 Foram mixed Fine grained glaciomarine unit, no drop stones, overlain by coarser unit - 14 C AMS 17740 270 MARINE09 20695 384 Unclassified In situ 2.99 m rejected as anomalously high Sejrup et al. 1994 Coarse grained diamicton, glaciomarine with dropstones, fines upwards. Dates are mixed 365 Ua-831 - North Sea Fladen Ground core 77/2 58.492 - 0.505 - - 546028 958676 Mollusc - 14 C AMS 14810 200 MARINE09 17495 284 Ice free In situ 8.89 m mollusc dates regarded as reliable Sejrup et al. 1994 and reversed, regard mollusc dates as most reliable Coarse grained diamicton, glaciomarine with dropstones, fines upwards. Dates are mixed 365 Tua-149 - North Sea Fladen Ground core 77/2 58.492 - 0.505 - - 546028 958676 Foram mixed - 14 C AMS 19535 225 MARINE09 22752 279 Unclassified In situ 9.0 m rejected as anomalously high Sejrup et al. 1994 and reversed, regard mollusc dates as most reliable Coarse grained diamicton, glaciomarine with dropstones, fines upwards. Dates are mixed 365 TUa-276 - North Sea Fladen Ground core 77/2 58.492 - 0.505 - - 546028 958676 Foram mixed - 14 C AMS 15170 115 MARINE09 17907 155 Unclassified In situ 12.7 m foram dates regarded as unreliable Sejrup et al. 1994 and reversed, regard mollusc dates as most reliable Coarse grained diamicton, glaciomarine with dropstones, fines upwards. Dates are mixed 365 TUa-458 - North Sea Fladen Ground core 77/2 58.492 - 0.505 - - 546028 958676 Foram mixed - 14 C AMS 18010 165 MARINE09 21081 213 Unclassified In situ 16.4 m rejected as anomalously high Sejrup et al. 1994 and reversed, regard mollusc dates as most reliable Fine grained partly laminated unit (glaciomarine) above till, in situ mollusc and rich in 365 TUa-459 - North Sea Fladen Ground core 77/2 58.492 - 0.505 - - 546028 958676 Mollusc - 14 C AMS 14900 155 MARINE09 17666 246 Retreat In situ 17.55 m mollusc dates regarded as reliable Sejrup et al. 1994 forams Fine grained partly laminated unit (glaciomarine) above till, in situ mollusc and rich in 365 TUa-141 - North Sea Fladen Ground core 77/2 58.492 - 0.505 - - 546028 958676 Foram mixed - 14 C AMS 16540 185 MARINE09 19062 98 Unclassified In situ 18 m foram dates regarded as unreliable Sejrup et al. 1994 forams Fine grained partly laminated unit (glaciomarine) above till, in situ mollusc and rich in 365 Ua-690 - North Sea Fladen Ground core 77/2 58.492 - 0.505 - - 546028 958676 Mollusc - 14 C AMS 21300 430 MARINE09 24972 563 Retreat In situ 18.48 m mollusc dates regarded as reliable Sejrup et al. 1994 forams Fine grained partly laminated unit (glaciomarine) above till, in situ mollusc and rich in 365 TUa-139 - North Sea Fladen Ground core 77/2 58.492 - 0.505 - - 546028 958676 Foram mixed - 14 C AMS 23120 335 MARINE09 27399 466 Unclassified In situ 18.52 m foram dates regarded as unreliable Sejrup et al. 1994 forams Fine grained partly laminated unit (glaciomarine) above till, in situ mollusc and rich in 365 TUa-150 - North Sea Fladen Ground core 77/2 58.492 - 0.505 - - 546028 958676 Foram mixed - 14 C AMS 20180 330 MARINE09 23713 451 Unclassified In situ 19.22 m foram dates regarded as unreliable Sejrup et al. 1994 forams

Dates suggest 13.5 14 C ka BP for influx of temperate North 366 - - Witch Ground Basin 58.567 - 0.402 - - 539699 966786 Shells 2.4-2.6 m depth - 14 C 13660 180 MARINE09 16254 403 Ice free Hedges et al. 1988b CBA date list Atlantic water to central North Sea

366 - - Witch Ground Basin 58.567 - 0.402 - - 539699 966786 Shells 2.8-3 m depth - 14 C 21320 280 MARINE09 24890 392 Unclassified Possible reworking discarded from analysis as unreliable Hedges et al. 1988b CBA date list

Dates suggest 13.5 14 C ka BP for influx of temperate North 366 - - Witch Ground Basin 58.567 - 0.402 - - 539699 966786 Shells 4-4.2 m depth - 14 C 14180 170 MARINE09 16891 165 Ice free Hedges et al. 1988b CBA date list Atlantic water to central North Sea

Dates suggest 13.5 14 C ka BP for influx of temperate North 366 - - Witch Ground Basin 58.567 - 0.402 - - 539699 966786 Shells 5.2-5.4 m depth - 14 C 13460 150 MARINE09 15781 373 Ice free Hedges et al. 1988b CBA date list Atlantic water to central North Sea

Dates suggest 13.5 14 C ka BP for influx of temperate North 366 - - Witch Ground Basin 58.567 - 0.402 - - 539699 966786 Shells 5.2-5.4 m depth - 14 C 13620 150 MARINE09 16200 366 Ice free Hedges et al. 1988b CBA date list Atlantic water to central North Sea

367 Beta-225418 - Fladen Ground 58.578 - 0.726 - - 558486 968745 Benthic Foram Core GS140-14GC glaciomarine sediments above grounding zone wedge - 14 C AMS 13270 40 MARINE09 15312 197 Retreat Sejrup et al. 2009 367 Beta-216741 - Fladen Ground 58.578 - 0.726 - - 558486 968745 Shell Core GS140-14GC glaciomarine sediments above grounding zone wedge - 14 C AMS 13450 70 MARINE09 15688 283 Retreat Sejrup et al. 2009

368 SRR-5098 - South of Bergen Bank 59.489 - 1.769 - - 613373 1073022 Shell 4.8-4.9m depth in core BGS vibrocore 59/+01/156 - 14 C 13175 70 MARINE09 15109 149 Ice free Obtained on mixed shell debris; questionable reliability Peacock 1995

369 SRR-5097 - Bergen Bank 60.110 - 1.626 - - 601491 1141572 Shell Vibrocore 60/00/98 1.7 m - 14 C 11290 55 MARINE09 12747 87 Ice free Peacock 1995 Peacock 1995; Peacock 370 OxA-4137 - Pobie Bank 60.184 - 0.190 - - 521471 1146330 Shell Vibrocore 60/00/49; late glacial shell bed above diamicton, 0.8 m - 14 C AMS 12670 130 MARINE09 14115 166 Retreat and Long 1994

371 AA-12999 - Viking Bank 60.818 - 1.629 - - 591088 1209994 Shell Vibrocore 60/+/-01/44 - 14 C AMS 11405 75 MARINE09 12852 116 Ice free Shallow sea 15.5-13.5 14 C ka BP Peacock 1995 372 SRR-5078 - Viking Bank 60.805 - 1.627 - - 591088 1209994 Shell Vibrocore 60/+/-01/45 - 14 C 12185 55 MARINE09 13651 83 Ice free Shallow sea 15.5-13.5 14 C ka BP Peacock 1995 373 AA-13300 - Viking Bank 60.728 - 1.505 - - 591088 1209994 Shell Vibrocore 60/+/-01/46 - 14 C AMS 14050 140 MARINE09 16785 148 Ice free Shallow sea 15.5-13.5 14 C ka BP Peacock 1995 373 AA-13000 - Viking Bank 60.728 - 1.505 - - 591088 1209994 Shell Vibrocore 60/+01/46 - 14 C AMS 13940 90 MARINE09 16712 127 Ice free Shallow sea 15.5-13.5 14 C ka BP Peacock 1995 CBA date list 373 OxA-4139 - Viking Bank 60.728 - 1.505 - - 591088 1209994 Shell Vibrocore 60/+01/46 - 14 C AMS 15860 180 MARINE09 18695 139 Ice free Shallow sea 15.5-13.5 14 C ka BP Peacock 1995 CBA date list Rise and Rokoengen 374 T-3827 - Northern North Sea 61.000 - 1.833 - - 608086 1245664 Organics Within possible littoral or glaciofluvial sediments - 14 C 30190 360 INTCAL09 34814 245 Ice free Approximate location core A79-156 Jones and Keen 1993 1984 Late Weichselian offshore moraine west of Norwegian 375 - - Northern North Sea 61.183 - 2.530 - - 643453 1264040 Shells Within possible littoral or glaciofluvial sediments - 14 C 31150 1200 MARINE09 35367 1265 Ice free Milling 1975 Jones and Keen 1993 Trench related to Scandinavian Ice Sheet Roekoengen et al. 1982; Tampen readvance of Scandinavian Ice Sheet; core A79- 376 T-3604 - Statfjord Field 61.183 - 1.967 - - 614088 1261188 Shells Shell fragments within till - 14 C 18860 260 MARINE09 21961 320 Advance Rise and Roekoengen Sutherland 1984 146 1984 377 - - North-Northeast Shetland shelf 61.244 0.109 - - - 513016 1264261 Shell Vibrocore 61/+01/66, shell within till - 14 C AMS 17825 280 MARINE09 20765 381 Advance Ross 1996 Sejrup et al. 2009 378 TUa-281 - North Sea core 91-7 60.635 - 3.725 - - 712886 1208186 Mollusc In situ mollusc 1.88 m - 14 C AMS 13560 110 MARINE09 16015 398 Ice free Glaciomarine unit no drop stones Sejrup et al. 1994 379 GV1 Hag's Teeth moraine, MacGillycuddy's Reeks 52.002 9.714 - 82340 84661 boulder boulder on moraine 484 CN 10 Be 17130 1340 Margin Potential inheritance Harrison et al. 2010a 379 GV2 Hag's Teeth moraine, MacGillycuddy's Reeks 52.003 9.713 - 82411 84770 boulder boulder on moraine 468 CN 10 Be 22860 1530 Margin Potential inheritance Harrison et al. 2010a 380 GV3 Coomloughra moraine, MacGillycuddy's Reeks 51.996 9.711 - 82530 83988 boulder boulder on moraine 570 CN 10 Be 15080 990 Margin Potential inheritance Harrison et al. 2010a 380 GV4 Coomloughra moraine, MacGillycuddy's Reeks 51.995 9.710 - 82596 83875 boulder boulder on moraine 569 CN 10 Be 14870 1750 Margin Potential inheritance Harrison et al. 2010a 381 UBA-7975 Lough Nadourcan 55.050 7.900 - 206441 422518 humic lake core, sampled "organic lake mud"; deepest humic sample (760cm) 70 14 C AMS 11508 52 INTCAL09 13353 56 Ice free Watson et al. 2010 381 UBA-7975 Lough Nadourcan 55.050 7.900 - 206441 422518 humin lake core, sampled "organic lake mud"; deepest humin sample (760cm) 70 14 C AMS 12005 55 INTCAL09 13856 72 Ice free Watson et al. 2010

381 UB-7185 Lough Nadourcan 55.050 7.900 - 206441 422518 bulk sediment lake core, sampled "organic lake mud"; deepest bulk sediment sample (822cm) 70 14 C AMS 12865 60 INTCAL09 15318 214 Ice free Watson et al. 2010

382 Beta-189451 LST 1-2 Loch More 58.322 4.945 - - - 227600 940800 Peat Core. Organic gyttja above laminated silt - 14 C AMS 9660 110 INTCAL09 10510 131 Ice free Lukas and Bradwell 2010

383 CF-01 Pembroke 52.000 4.947 - - - 197700 237600 Bedrock Ice moulded outcrop just within glacial limit. 130 CN 10 Be 35280 3630 Retreat McCarroll et al. 2010 384 CO-01 Pembroke 51.999 5.078 - - - 188900 238000 Bedrock Ice moulded outcrop just within glacial limit. 119 CN 10 Be 33370 3620 Retreat McCarroll et al. 2010 385 PF-01 Pembroke 51.998 4.915 - - - 199900 237400 Bedrock Ice moulded outcrop just within glacial limit. 95 CN 36 Cl 33510 2560 Retreat McCarroll et al. 2010 386 PM-01 Pembroke 52.013 5.085 - - - 188300 239600 Bedrock Ice moulded outcrop just within glacial limit. 88 CN 36 Cl 76820 7200 Retreat McCarroll et al. 2010 Exposure time 387 MC-01 West Preseli Hills, Pembroke 52.000 4.838 - - - 205200 237400 Tor Outside Last Glacial Maximum glacial limit. 290 CN 36 Cl 107100 7700 outside the LGM glacial limit McCarroll et al. 2010 (cumulative) Exposure time 387 MC-02 West Preseli Hills, Pembroke 51.998 4.833 - - - 205500 237200 Tor Outside Last Glacial Maximum glacial limit. 330 CN 36 Cl 152600 15700 outside the LGM glacial limit McCarroll et al. 2010 (cumulative) Exposure time 387 MC-03 West Preseli Hills, Pembroke 51.992 4.835 - - - 205400 236500 Tor Outside Last Glacial Maximum glacial limit. 295 CN 36 Cl 129500 14100 outside the LGM glacial limit McCarroll et al. 2010 (cumulative) 388 MM-01 Mynedd Mawr, Lleyn Peninsula 52.798 4.757 - - - 214100 325900 Bedrock Striated surface. 135 CN 10 Be 22550 2300 Retreat McCarroll et al. 2010 388 MM-02 Mynedd Mawr, Lleyn Peninsula 52.800 4.756 - - - 214200 326100 Bedrock Outcrop. 125 CN 10 Be 21270 2210 Unclassified Possible inheritance due to insufficient erosion McCarroll et al. 2010 389 HM-01 Holyhead Mountain, Anglesey 53.294 4.679 - - - 221500 380800 Bedrock Vein quartz near ice moulded summit. 210 CN 10 Be 20480 2140 Unclassified Possible inheritance due to insufficient erosion McCarroll et al. 2010 389 HM-2.1 Holyhead Mountain, Anglesey 53.294 4.679 - - - 221600 380800 Bedrock Vein quartz near ice moulded summit. 205 CN 10 Be 17940 1850 Retreat McCarroll et al. 2010 389 HM-2.2 Holyhead Mountain, Anglesey 53.294 4.679 - - - 221600 380800 Bedrock Vein quartz near ice moulded summit. 205 CN 10 Be 18880 2010 Retreat McCarroll et al. 2010 389 HM-03 Holyhead Mountain, Anglesey 53.294 4.679 - - - 221600 380800 Bedrock Vein quartz near ice moulded summit. 200 CN 10 Be 18620 1940 Retreat McCarroll et al. 2010 389 HM-04 Holyhead Mountain, Anglesey 53.294 4.679 - - - 221600 380800 Bedrock Vein quartz near ice moulded summit. 190 CN 10 Be 17710 1800 Retreat McCarroll et al. 2010 1b (lower 390 SUERC-2492 Menai Straits 53.241 4.125 - - - 258300 373650 Peat Organic layer above silts organics and diamicton - 14 C AMS 9714 49 MARINE09 10562 45 Retreat Roberts et al. 2011 contact) 1b (upper 390 SUERC-2491 Menai Straits 53.241 4.125 - - - 258300 373650 Peat Organic layer above silts organics and diamicton - 14 C AMS 9296 53 MARINE09 10154 62 Retreat Roberts et al. 2011 contact) 2c (lower 390 SUERC-2503 Menai Straits 53.250 4.104 - - - 259750 374650 Peat Organic layers interspersed within silty sand - 14 C AMS 9301 54 MARINE09 10158 60 Ice free Roberts et al. 2011 contact) 1a (lower 390 SUERC-2496 Menai Straits 53.241 4.125 - - - 258300 373650 Peat Organic layer above diamicton - 14 C AMS 9965 49 MARINE09 10978 100 Retreat Roberts et al. 2011 contact) 1a (upper 390 SUERC-2493 Menai Straits 53.241 4.125 - - - 258300 373650 Peat Organic layer above diamicton - 14 C AMS 9945 48 MARINE09 10917 122 Retreat Roberts et al. 2011 contact)

390 SUERC-2579 1a (lower contact Menai Straits 53.241 4.125 - - - 258300 373650 Peat Organic layer above diamicton - 14 C AMS 9817 67 MARINE09 10678 106 Retreat Roberts et al. 2011 1a (upper 390 SUERC-2578 Menai Straits 53.241 4.125 - - - 258300 373650 Peat Organic layer above diamicton - 14 C AMS 9834 67 MARINE09 10696 113 Retreat Roberts et al. 2011 contact

Page 16 of 19 Dates relating to the build up and retreat of the last British -Irish Ice Sheet. Version 2.0. Census date: 1 May 2012.

Date final abandonment of 325 m lake shoreline., and 396 b1472 2 Parallel roads of Glen Roy 56.990 4.680 - - - 237269 791952 Bedrock From 325 m shoreline 325 CN 10 Be 11400 1100 Ice free thus decline of Loch Lomond Stadial ice cap. Lm scaling Fabel et al. 2010 with an erosion rate of 1.0 mm ka -1

Date final abandonment of 325 m lake shoreline., and 396 b1473 3 Parallel roads of Glen Roy 56.990 4.680 - - - 237269 791952 Bedrock From 325 m shoreline 325 CN 10 Be 11500 1110 Ice free thus decline of Loch Lomond Stadial ice cap. Lm scaling Fabel et al. 2010 with an erosion rate of 1.0 mm ka -1

Date final abandonment of 325 m lake shoreline., and 396 b1474 4 Parallel roads of Glen Roy 56.990 4.680 - - - 237269 791952 Bedrock From 325 m shoreline, overlain by peat 325 CN 10 Be 11400 1500 Ice free thus decline of Loch Lomond Stadial ice cap. Lm scaling Fabel et al. 2010 with an erosion rate of 1.0 mm ka -1

396 b1477 5 Parallel roads of Glen Roy 56.990 4.720 - - - 234840 792048 Clasts From Turret Fan, underlain by lacustrine sediments 250 CN 10 Be 10300 1000 Ice free Represent draining of 260 m lake. Lm scaling Fabel et al. 2010 396 b1478 6 Parallel roads of Glen Roy 56.990 4.730 - - - 234232 792072 Clasts From Turret Fan, underlain by lacustrine sediments 240 CN 10 Be 11100 700 Ice free Represent draining of 260 m lake. Lm scaling Fabel et al. 2010 396 b1479 7 Parallel roads of Glen Roy 56.970 4.740 - - - 233536 789871 Boulder From Brunachan Fan 220 CN 10 Be 9500 1000 Ice free Lm scaling Fabel et al. 2010 396 b1480 8 Parallel roads of Glen Roy 56.970 4.740 - - - 233536 789871 Clast From Brunachan Fan 220 CN 10 Be 9800 1000 Ice free Lm scaling Fabel et al. 2010 397 Lu-6676 Abernethy Forest 57.233 3.700 - - - 297500 817100 Macrofossil Basal date of organic sequence at 686–687 cm depth 14 C AMS 12175 80 INTCAL09 14020 115 Ice free Matthews et al. 2011

398 WRC-4 Applecross Peninsula 57.438 5.689 - - - 178756 844637 Bedrock most scoured surfaces 595 CN 10 Be 11600 1100 Retreat McCormack et al. 2011

398 WRC-5 Applecross Peninsula 57.438 5.688 - - - 179756 844637 Bedrock most scoured surfaces 602 CN 10 Be 11400 1000 Retreat McCormack et al. 2011 Not covered by ice during the Younger Dryas, a nunatak or 398 WRC-6 Applecross Peninsula 57.438 5.693 - - - 178456 844653 Bedrock most weathered surfaces 648 CN 10 Be 17100 1800 Retreat McCormack et al. 2011 by cold based ice.

398 WRC-7 Applecross Peninsula 57.432 5.693 - - - 178420 843986 Bedrock most weathered surfaces 609 CN 10 Be 12100 1100 Retreat McCormack et al. 2011

399 WRC-1a Coire Mhic Fhearchair, Torridon 57.594 5.448 - - - 194035 861234 Bedrock roche moutonee - glacially smoothed stoss 578 CN 10 Be 11900 1100 Retreat McCormack et al. 2011

399 WRC-1b Coire Mhic Fhearchair, Torridon 57.594 5.448 - - - 194035 861234 Bedrock roche moutonee - quarried lee 577 CN 10 Be 11200 1000 Retreat McCormack et al. 2011

400 WRC-2 Am Beacan, Torridon 57.605 5.468 - - - 192903 862519 Bedrock raised ice polished platform 415 CN 10 Be 11500 1100 Retreat McCormack et al. 2011 Low altitude trimline relates to the Loch Lomond Stadial 400 WRC-3 Am Beacan, Torridon 57.612 5.465 - - - 193139 863622 Bedrock above ~500 m trimline 526 CN 10 Be 13100 1200 Retreat McCormack et al. 2011 ice cap Marine core 2.71 m depth. Assynt Glacigenic Formation: time transgressive ice-contact and 401 SUERC-20452 SAMS core GC103 57.994 5.379 - - - 200380 905526 Bivalve - 14 C AMS 12593 41 MARINE09 14036 78 Ice free Stoker et al. 2009 ice-proximal glaciomarine and terrestrial facies. Moraines on surface of unit.

Marine core. 2.71–2.77 m depth. Assynt Glacigenic Formation: time transgressive ice- 402 SUERC-20449 BGS core 57-06/279 57.942 5.273 - - - 200090 899741 Bivalve - 14 C AMS 12710 42 MARINE09 14144 103 Ice free Stoker et al. 2009 contact and ice-proximal glaciomarine and terrestrial facies. Moraines on surface of unit.

403 SUERC-20453 BGS core 57-06/267 57.866 5.106 - - - 215853 890510 Bivalve Marine core.2.00–2.07 m depth. Loch Broom shell bed overlies Rhiroy Member diamicton - 14 C AMS 7610 38 MARINE09 8114 9 Retreat Constrains advance of glacier into Loch Broom Stoker et al. 2009 Marine core 3.50–3.55 m depth. Loch Broom shell bed overlain by Rhiroy Member 403 SUERC-20454 BGS core 57-06/267 57.866 5.106 - - - 215853 890510 Bivalve - 14 C AMS 11613 40 MARINE09 13140 68 Advance Constrains advance of glacier into Loch Broom Stoker et al. 2009 diamicton. Marine core. Witch Ground Formation. 10.22 m. Sharp contact with unit below. Laminated 404 Ua-32757 Witch Ground Basin, North Sea. BGS Borehole 04/01 58.403 - 0.577 - - 550690 948953 Foram - 14 C AMS 14030 230 MARINE09 16713 315 Unclassified Bivalve ages considered more reliable. Graham et al. 2010 silt. Interpretation: Ice distal shallow marine and marine. Marine core. Witch Ground Formation. 10.22 m. Sharp contact with unit below. Laminated 404 Ua-32758 Witch Ground Basin, North Sea. BGS Borehole 04/01 58.403 - 0.577 - - 550690 948953 Bivalve - 14 C AMS 12430 415 MARINE09 14001 599 Ice free Bivalve ages considered more reliable. Graham et al. 2010 silt. Interpretation: Ice distal shallow marine and marine. Marine core. Gradational contact with underlying unit. Swatchway Formation. Mudstone 404 Ua-32759 Witch Ground Basin, North Sea. BGS Borehole 04/01 58.403 - 0.577 - - 550690 948953 Foram with sand/silt layers. Frequent dropstones. 11.6 m. Interpretation: proximal glacimarine - 14 C AMS 23470 165 MARINE09 27919 226 Unclassified Outlier. Within reworked sediments. Graham et al. 2010 with iceberg sedimentation. Marine core. Diamicton. Swatchway Formation. 17.7 m. Sharp boundary with underlying 404 Ua-32760 Witch Ground Basin, North Sea. BGS Borehole 04/01 58.403 - 0.577 - - 550690 948953 Foram - 14 C AMS 16600 335 MARINE09 19239 340 Unclassified Bivalve ages considered more reliable. Graham et al. 2010 sediment. Interpretation: Proximal glaciomarine. Marine core. Diamicton. Swatchway Formation. 17.7 m. Sharp boundary with underlying 404 Ua-32761 Witch Ground Basin, North Sea. BGS Borehole 04/01 58.403 - 0.577 - - 550690 948953 Bivalve - 14 C AMS 14250 345 MARINE09 17031 457 Retreat Bivalve ages considered more reliable. Graham et al. 2010 sediment. Interpretation: Proximal glaciomarine. Marine core. Diamicton. Swatchway Formation. 17.7 m. Sharp boundary with underlying 404 Ua-32762 Witch Ground Basin, North Sea. BGS Borehole 04/01 58.403 - 0.577 - - 550690 948953 Bivalve - 14 C AMS 12245 75 MARINE09 13699 105 Retreat Bivalve ages considered more reliable. Graham et al. 2010 sediment. Interpretation: Proximal glaciomarine. Marine core. Diamicton. Coal Pit Formation. 19.04 m. Interpretation: Glacially overidden Top of unit corresponds with MSGL seismic package. 404 Ua-32763 Witch Ground Basin, North Sea. BGS Borehole 04/01 58.403 - 0.577 - - 550690 948953 Foram - 14 C AMS 30390 2230 MARINE09 34256 2318 Advance Graham et al. 2010 glaciomarine sediments. Minimum age for glacial overriding. Marine core. Diamicton. Coal Pit Formation, 26.8 m. Interpretation: Glacially overidden Top of unit corresponds with MSGL seismic package. 404 Ua-32764 Witch Ground Basin, North Sea. BGS Borehole 04/01 58.403 - 0.577 - - 550690 948953 Foram - 14 C AMS 28860 2950 MARINE09 33034 2706 Advance Graham et al. 2010 glaciomarine sediments. Minimum age for glacial overriding. Marine core. Diamicton. Coal Pit Formation. 28.91 m. Interpretation: Glacially overidden 404 Ua-32765 Witch Ground Basin, North Sea. BGS Borehole 04/01 58.403 - 0.577 - - 550690 948953 Foram - 14 C AMS 31390 4085 MARINE09 35499 4073 Advance Graham et al. 2010 glaciomarine sediments. Marine core. Diamicton. Coal Pit Formation. 28.91 m. Interpretation: Glacially overidden 404 Ua-32766 Witch Ground Basin, North Sea. BGS Borehole 04/01 58.403 - 0.577 - - 550690 948953 shell fragments - 14 C AMS 31170 655 MARINE09 35139 464 Advance Graham et al. 2010 glaciomarine sediments. 405 STR01-08 Strollamus moraine 57.268 6.007 --- 158441 826793 Boulder Top of moraine 190 CN 10 Be 14520 1350 Margin Erosion rate 1 mm/ka applied Small et al. 2012 405 STR02-08 Strollamus moraine 57.269 6.007 --- 158448 826904 Boulder Top of moraine 185 CN 10 Be 14170 1430 Margin Erosion rate 1 mm/ka applied Small et al. 2012

Page 17 of 19 Dates relating to the build up and retreat of the last British -Irish Ice Sheet. Version 2.0. Census date: 1 May 2012.

Irish British Calibration curve Irish British 14 C age Calibrated §/ Calibrated +/ Site Laboratory Sample/site Longitude Longitude National National Dating 14 C uncorrected (NB. no DeltaR Ice sheet Site name Latitude °N National National Dated Material Stratigraphic position/setting Elevation uncorrected calendar age (yr calendar error Comment Source Reference Citation No. code code °W °E Grid Grid Technique error +/- (yr) applied on MARINE context Grid Easting Grid Easting (yr BP) BP) +/- (yr) Northing Northing samples) 405 STR03-08 Strollamus moraine 57.269 6.007 --- 158448 826904 Boulder Top of moraine 180 CN 10 Be 14880 1550 Margin Erosion rate 1 mm/ka applied Small et al. 2012 405 STR04-08 Strollamus moraine 57.271 6.009 --- 158340 827133 Boulder Top of moraine 150 CN 10 Be 13500 1430 Margin Erosion rate 1 mm/ka applied Small et al. 2012 405 STR05-08 Strollamus moraine 57.271 6.009 --- 158340 827133 Boulder Top of moraine 151 CN 10 Be 13530 1970 Margin Erosion rate 1 mm/ka applied Small et al. 2012 406 SLAP-1 Slapin moraine 57.199 6.001 - - - 158351 819099 Boulder Along mapped LLR moraine limit 10 CN 10 Be 12300 1190 Margin Erosion rate 1 mm/ka applied Small et al. 2012 406 SLAP-2 Slapin moraine 57.198 6.001 - - - 158345 818998 Boulder Along mapped LLR moraine limit 10 CN 10 Be 11690 1190 Margin Erosion rate 1 mm/ka applied Small et al. 2012 406 SLAP-3 Slapin moraine 57.201 6.001 - - - 158364 819321 Boulder Along mapped LLR moraine limit 10 CN 10 Be 11100 1080 Margin Erosion rate 1 mm/ka applied Small et al. 2012 406 SLAP-4 Slapin moraine 57.201 6.001 - - - 158364 819321 Boulder Along mapped LLR moraine limit 15 CN 10 Be 11440 1120 Margin Erosion rate 1 mm/ka applied Small et al. 2012 10 406 SLAP-5 Slapin moraine 57.201 6.001 - - - 158364 819321 Boulder Along mapped LLR moraine limit 15 CN Be 10690 1110 Margin Erosion rate 1 mm/ka applied Small et al. 2012 407 b4258 AB01 Aran Benllyn 52.802 3.685 - - - 286530 324010 bedrock Degraded ice moulded bedrock 878 CN 10 Be 17510 1610 Retreat CN 26Al measurements also undertaken Glasser et al. 2012 CN 26Al measurements also undertaken, considered 407 b4261 Aran Benllyn 52.804 3.682 - - - 286680 324280 bedrock Degraded ice moulded bedrock 881 CN 10 Be 33930 3130 Unclassified Glasser et al. 2012 AB02 anomalously old by the authors CN 26Al measurements also undertaken, considered 407 b4262 Aran Benllyn 52.809 3.679 - - - 286920 324770 bedrock Degraded ice moulded bedrock 846 CN 10 Be 27500 2530 Unclassified Glasser et al. 2012 AB03 anomalously old by the authors 408 b4644 AF01 Aran Fawddwy 52.782 3.690 - - - 286080 321780 bedrock Degraded ice moulded bedrock 818 CN 10 Be 17540 1630 Retreat CN 26Al measurements also undertaken Glasser et al. 2012 408 b4264 AF02 Aran Fawddwy 52.783 3.692 - - - 285970 321970 bedrock Degraded ice moulded bedrock 880 CN 10 Be 19950 1840 Retreat CN 26Al measurements also undertaken Glasser et al. 2012 408 b4265 AF03 Aran Fawddwy 52.787 3.689 - - - 286210 322410 bedrock Degraded ice moulded bedrock 901 CN 10 Be 19720 1840 Retreat CN 26Al measurements also undertaken Glasser et al. 2012 407 b4242 AB06 Aran Benllyn 52.821 3.675 - - - 287220 326100 bedrock Well-preserved ice moulded bedrock 608 CN 10 Be 18370 1770 Retreat CN 26Al measurements also undertaken Glasser et al. 2012 408 b4267 AF04 Aran Fawddwy 52.774 3.699 - - - 285480 320950 bedrock Well-preserved ice moulded bedrock 638 CN 10 Be 16540 1590 Retreat CN 26Al measurements also undertaken Glasser et al. 2012 409 Fiddaun, Co. Galway 53.016 8.868 - 141794 196464 - - Macrofossils Macrofossils within lacustrine sediment core; clay above gravel 14 C AMS 10440 100 INTCAL09 12284 76 Ice free van Asch et al. 2012 409 Fiddaun, Co. Galway 53.016 8.868 - 141794 196464 - - Macrofossils Macrofossils within lacustrine sediment core; clay above gravel 14 C AMS 10875 100 INTCAL09 12755 111 Ice free van Asch et al. 2012 409 Fiddaun, Co. Galway 53.016 8.868 - 141794 196464 - - Macrofossils Macrofossils within lacustrine sediment core; clay above gravel 14 C AMS 12210 100 INTCAL09 14047 217 Ice free van Asch et al. 2012 409 Fiddaun, Co. Galway 53.016 8.868 - 141794 196464 - - Macrofossils Macrofossils within lacustrine sediment core; clay above gravel 14 C AMS 12310 120 INTCAL09 14292 567 Ice free van Asch et al. 2012 409 Fiddaun, Co. Galway 53.016 8.868 - 141794 196464 - - Macrofossils Macrofossils within lacustrine sediment core; clay above gravel 14 C AMS 12260 60 INTCAL09 14104 272 Ice free van Asch et al. 2012 410 01 Monadhliath Mountains 57.110 4.150 - - - 269884 804168 Boulder Drift ridges 646 CN 10 Be 16200 1500 Margin Gheorghiu et al. 2012 410 02 Monadhliath Mountains 57.110 4.150 - - - 269884 804168 Boulder Drift ridges 641 CN 10 Be 14100 1300 Margin Gheorghiu et al. 2012 410 03 Monadhliath Mountains 57.110 4.150 - - - 269884 804168 Boulder Drift ridges 634 CN 10 Be 11600 1000 Margin Gheorghiu et al. 2012 410 04 Monadhliath Mountains 57.050 4.050 - - - 275739 797304 Boulder Ridge Glen Banchor 362 CN 10 Be 13300 1400 Margin Gheorghiu et al. 2012 410 05 Monadhliath Mountains 57.050 4.050 - - - 275739 797304 Boulder Ridge Glen Banchor 362 CN 10 Be 13000 1200 Margin Gheorghiu et al. 2012 410 06 Monadhliath Mountains 57.060 4.230 - - - 264858 798759 Boulder Moraine B 470 CN 10 Be 11800 1100 Margin Gheorghiu et al. 2012 410 07 Monadhliath Mountains 57.070 4.250 - - - 263682 799911 Boulder Moraine D 655 CN 10 Be 10200 1100 Margin Gheorghiu et al. 2012 410 08 Monadhliath Mountains 57.070 4.250 - - - 263682 799911 Boulder Moraine D 655 CN 10 Be 11000 1000 Margin Gheorghiu et al. 2012 410 09 Monadhliath Mountains 57.080 4.230 - - - 264931 800984 Boulder Lacustrine deposit 550 CN 10 Be 11600 1100 Ice free Gheorghiu et al. 2012 410 10 Monadhliath Mountains 57.080 4.230 - - - 264931 800984 Boulder Lacustrine deposit 528 CN 10 Be 10900 1000 Ice free Gheorghiu et al. 2012 410 11 Monadhliath Mountains 57.080 4.230 - - - 264931 800984 Boulder Moraine E 520 CN 10 Be 11300 1000 Margin Gheorghiu et al. 2012 410 12 Monadhliath Mountains 57.080 4.220 - - - 265537 800965 Boulder Moraine E 520 CN 10 Be 10800 1000 Margin Gheorghiu et al. 2012 410 13 Monadhliath Mountains 57.080 4.230 - - - 264931 800984 Boulder Moraine F 600 CN 10 Be 9700 900 Margin Gheorghiu et al. 2012 410 14 Monadhliath Mountains 57.080 4.230 - - - 264931 800984 Boulder Moraine F 579 CN 10 Be 9900 900 Margin Gheorghiu et al. 2012 410 15 Monadhliath Mountains 57.110 4.160 - - - 269279 804187 Bedrock Bedrock knobs 755 CN 10 Be 12500 1200 Ice free Gheorghiu et al. 2012 410 16 Monadhliath Mountains 57.110 4.160 - - - 269279 804187 Bedrock Bedrock knobs 755 CN 10 Be 11100 1000 Ice free Gheorghiu et al. 2012 411 Beta - 48580 Church Bay, Rathlin Island 55.295 6.241 - 311801 451228 - - 14 C 12735 80 INTCAL09 15073 356 Ice free Carter 1993 J. Clark et al. 2012 Unspecificed dated material; coordinates from 412 Northern Irish Sea 54.312 3.648 - - - 292858 491924 Marine sediments Marine core CIR 5/83-62 14 C 13030 400 MARINE09 14817 1544 Ice free Kershaw 1986 J. Clark et al. 2012 geocorrected scanned figure from Kershaw 1986 Unspecificed dated material; coordinates from 412 Northern Irish Sea 54.312 3.648 - - - 292858 491924 Marine sediments Marine core CIR 5/83-62 14 C 11770 300 MARINE09 13201 610 Ice free Kershaw 1986 J. Clark et al. 2012 geocorrected scanned figure from Kershaw 1986 Unspecificed dated material; coordinates from 412 Northern Irish Sea 54.312 3.648 - - - 292858 491924 Marine sediments Marine core CIR 5/83-62 14 C 13230 260 MARINE09 15454 1262 Ice free Kershaw 1986 J. Clark et al. 2012 geocorrected scanned figure from Kershaw 1986 Unspecificed dated material; coordinates from 412 Northern Irish Sea 54.312 3.648 - - - 292858 491924 Marine sediments Marine core CIR 5/83-62 14 C 12950 360 MARINE09 14621 1277 Ice free Kershaw 1986 J. Clark et al. 2012 geocorrected scanned figure from Kershaw 1986 Unspecificed dated material; coordinates from 412 Northern Irish Sea 54.312 3.648 - - - 292858 491924 Marine sediments Marine core CIR 5/83-62 14 C 11910 210 MARINE09 13379 428 Ice free Kershaw 1986 J. Clark et al. 2012 geocorrected scanned figure from Kershaw 1986 Unspecificed dated material; coordinates from 412 Northern Irish Sea 54.312 3.648 - - - 292858 491924 Marine sediments Marine core CIR 5/83-62 14 C 12220 200 MARINE09 13640 409 Ice free Kershaw 1986 J. Clark et al. 2012 geocorrected scanned figure from Kershaw 1986 Unspecificed dated material; coordinates from 412 Northern Irish Sea 54.312 3.648 - - - 292858 491924 Marine sediments Marine core CIR 5/83-62 14 C 12610 220 MARINE09 14187 765 Ice free Kershaw 1986 J. Clark et al. 2012 geocorrected scanned figure from Kershaw 1986 Unspecificed dated material; coordinates from 413 Northern Irish Sea 54.396 3.767 - - - 285369 501528 Marine sediments Marine core CIR 5/83-191 14 C 11820 150 MARINE09 13273 274 Ice free Kershaw 1986 J. Clark et al. 2012 geocorrected scanned figure from Kershaw 1986 Unspecificed dated material; coordinates from 413 Northern Irish Sea 54.396 3.767 - - - 285369 501528 Marine sediments Marine core CIR 5/83-191 14 C 11930 290 MARINE09 13417 580 Ice free Kershaw 1986 J. Clark et al. 2012 geocorrected scanned figure from Kershaw 1986 Unspecificed dated material; coordinates from 413 Northern Irish Sea 54.396 3.767 - - - 285369 501528 Marine sediments Marine core CIR 5/83-191 14 C 12240 270 MARINE09 13678 584 Ice free Kershaw 1986 J. Clark et al. 2012 geocorrected scanned figure from Kershaw 1986 Unspecificed dated material; coordinates from 413 Northern Irish Sea 54.396 3.767 - - - 285369 501528 Marine sediments Marine core CIR 5/83-191 14 C 11680 210 MARINE09 13134 430 Ice free Kershaw 1986 J. Clark et al. 2012 geocorrected scanned figure from Kershaw 1986 Unspecificed dated material; coordinates from 413 Northern Irish Sea 54.396 3.767 - - - 285369 501528 Marine sediments Marine core CIR 5/83-191 14 C 11880 210 MARINE09 13322 387 Ice free Kershaw 1986 J. Clark et al. 2012 geocorrected scanned figure from Kershaw 1986 Unspecificed dated material; coordinates from 413 Northern Irish Sea 54.396 3.767 - - - 285369 501528 Marine sediments Marine core CIR 5/83-191 14 C 12640 230 MARINE09 14224 804 Ice free Kershaw 1986 J. Clark et al. 2012 geocorrected scanned figure from Kershaw 1986 Unspecificed dated material; coordinates from 413 Northern Irish Sea 54.396 3.767 - - - 285369 501528 Marine sediments Marine core CIR 5/83-191 14 C 12340 230 MARINE09 13935 1322 Ice free Kershaw 1986 J. Clark et al. 2012 geocorrected scanned figure from Kershaw 1986 Unspecificed dated material; coordinates from 413 Northern Irish Sea 54.396 3.767 - - - 285369 501528 Marine sediments Marine core CIR 5/83-191 14 C 12280 200 MARINE09 13692 439 Ice free Kershaw 1986 J. Clark et al. 2012 geocorrected scanned figure from Kershaw 1986

414 Northern Irish Sea 54.293 5.436 - 366964 341287 - - Marine sediments Marine core CIR 5/82-93 14 C 20040 610 MARINE09 23355 1503 Ice free Unspecificed dated material; location taken from Kershaw 1986 J. Clark et al. 2012 georeferenced figure from J. Clark et al. 2012

414 Northern Irish Sea 54.293 5.436 - 366964 341287 - - Marine sediments Marine core CIR 5/82-93 14 C 19210 690 MARINE09 22433 1706 Ice free Unspecificed dated material; location taken from Kershaw 1986 J. Clark et al. 2012 georeferenced figure from J. Clark et al. 2012

414 Northern Irish Sea 54.293 5.436 - 366964 341287 - - Marine sediments Marine core CIR 5/82-93 14 C 15720 470 MARINE09 18436 997 Ice free Unspecificed dated material; location taken from Kershaw 1986 J. Clark et al. 2012 georeferenced figure from J. Clark et al. 2012

414 Northern Irish Sea 54.293 5.436 - 366964 341287 - - Marine sediments Marine core CIR 5/82-93 14 C 13750 250 MARINE09 16326 924 Ice free Unspecificed dated material; location taken from Kershaw 1986 J. Clark et al. 2012 georeferenced figure from J. Clark et al. 2012

414 Northern Irish Sea 54.293 5.436 - 366964 341287 - - Marine sediments Marine core CIR 5/82-93 14 C 13140 230 MARINE09 15061 1119 Ice free Unspecificed dated material; location taken from Kershaw 1986 J. Clark et al. 2012 georeferenced figure from J. Clark et al. 2012

414 Northern Irish Sea 54.293 5.436 - 366964 341287 - - Marine sediments Marine core CIR 5/82-93 14 C 12330 220 MARINE09 13745 516 Ice free Unspecificed dated material; location taken from Kershaw 1986 J. Clark et al. 2012 georeferenced figure from J. Clark et al. 2012 415 202998 Belfast Lough: vibrocore BLVC04-03 54.743 5.634 - 396700 309700 - - shell Lowstand beach 14 C 11990 40 MARINE09 13406 126 Ice free Kelley et al. 2006 J. Clark et al. 2012 415 202999 Belfast Lough: vibrocore BLVC04-03 54.743 5.634 - 396700 309700 - - shell Lowstand beach 14 C 12000 40 MARINE09 13415 135 Ice free Kelley et al. 2006 J. Clark et al. 2012 415 203000 Belfast Lough: vibrocore BLVC04-03 54.743 5.634 - 396700 309700 - - shell Lowstand beach 14 C 11670 40 MARINE09 13168 106 Ice free Kelley et al. 2006 J. Clark et al. 2012 415 203001 Belfast Lough: vibrocore BLVC04-03 54.743 5.634 - 396700 309700 - - shell glacial-marine mud 14 C 12030 40 MARINE09 13446 136 Ice free Kelley et al. 2006 J. Clark et al. 2012 416 ## I-3268 Ards Peninsula ------shell shells within 'lower till'; constrains two subsequent till depostion events 14 C 24050 650 INTCAL09 28845 1312 Ice free No location information in original reference Hill and Prior 1968 J. Clark et al. 2012 No evidence for complex exposure history, but potentially 417 b3858 LC1a Lundy 51.190 4.670 - - - 213518 146808 bedrock Ice moulded bedrock; granite 102 CN 10 Be 34100 3100 Ice free Rolfe et al. 2012 too old. No evidence for complex exposure history, but potentially 417 a1067 LC1a Lundy 51.190 4.670 - - - 213518 146808 bedrock Ice moulded bedrock; granite 102 CN 26 Al 36700 3700 Ice free Rolfe et al. 2012 too old. No evidence for complex exposure history, but potentially 417 b3859 LC2a Lundy 51.200 4.670 - - - 213558 147920 bedrock Ice moulded bedrock; granite 104 CN 10 Be 31400 2900 Ice free Rolfe et al. 2012 too old. No evidence for complex exposure history, but potentially 417 a1068 LC2a Lundy 51.200 4.670 - - - 213558 147920 bedrock Ice moulded bedrock; granite 104 CN 26 Al 34100 3500 Ice free Rolfe et al. 2012 too old. 417 b3284 LC3b Lundy 51.200 4.670 - - - 213558 147920 bedrock Ice moulded bedrock; granite 104 CN 10 Be 41500 3800 Ice free Potentially too old Rolfe et al. 2012 417 a962 LC3b Lundy 51.200 4.670 - - - 213558 147920 bedrock Ice moulded bedrock; granite 104 CN 26 Al 35100 3500 Ice free Potentially too old Rolfe et al. 2012 417 b3288 LC4b Lundy 51.200 4.680 - - - 212860 147945 bedrock Ice moulded bedrock; granite 106 CN 10 Be 46000 4200 Ice free Potentially too old Rolfe et al. 2012 417 a963 LC4b Lundy 51.200 4.680 - - - 212860 147945 bedrock Ice moulded bedrock; granite 106 CN 26 Al 39600 3800 Ice free Potentially too old Rolfe et al. 2012 No evidence for complex exposure history, but potentially 417 b3599 LC5a Lundy 51.200 4.680 - - - 212860 147945 bedrock Ice moulded bedrock; pegmatite vein 94 CN 10 Be 39600 3000 Ice free Rolfe et al. 2012 too old. No evidence for complex exposure history, but potentially 417 a964 LC5a Lundy 51.200 4.680 - - - 212860 147945 bedrock Ice moulded bedrock; pegmatite vein 94 CN 26 Al 31700 3100 Ice free Rolfe et al. 2012 too old. No evidence for complex exposure history, but potentially 417 b3638 LC5ad Lundy 51.200 4.680 - - - 212860 147945 bedrock Ice moulded bedrock; granite 94 CN 10 Be 38800 3600 Ice free Rolfe et al. 2012 too old. No evidence for complex exposure history, but potentially 417 a982,a984 LC5ad Lundy 51.200 4.680 - - - 212860 147945 bedrock Ice moulded bedrock; granite 94 CN 26 Al 35400 3900 Ice free Rolfe et al. 2012 too old.

Page 18 of 19 Dates relating to the build up and retreat of the last British -Irish Ice Sheet. Version 2.0. Census date: 1 May 2012.

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