15/2 5th 1993 INTERNATIONAL NAN KTON ASSOCIATION VOLUME 15 UMBER 2 1993 ~&Rb~~ j CJ\ltl\ INTERNATIONAL NANNOPLANKTON \ ASSOCIATION 5th CONFERENCE SALAMANCA, SPAIN 30th August - 2nd September 1993 ABSTRACTS Conference Convenor Jose-Abel Flores Villarejo Organising Committee Francisco-Javier Sierro Jorge Civis Guillermo Prances Angeles Barcena Jose Angel Gonzalez Delgado Abstract volume edited by, J.R. Young & P.R. Bown INA Newsletter 15/1, 1993 - Salamanca Abstracts 41 EDITORS NOTES AND ACKNOWLEDGEMENTS The abstracts are not exactly as submitted since this volume was mainly produced via a Kurzweil text scanner - which converted the heterogeneous original copy into word processor files. The accuracy of scanning is dependant on the print quality of the originals and despite checking it is inevitable that some errors will have been introduced. Accents are a special problem, since they have to be individ­ ually re-inserted, and some will have been lost We have made corrections to spelling (including standardisation to UK spelling) - and to grammar where there were obvious problems with English usage. There has, however, been no scientific editing or vetting of the abstracts, other than removal­ \other nomina nuda. Some addresses have been shortened to save space, full postal addresses can be found in the INA Membership directory (INA Newsletter 14/3, p.118-124) The format adopted is virtually the same as for the Prague Abstract volume (INA Newsletter 13/2, 1991), including the use of topic codes similar to those used in the INA Bibliographies. These codes are (1) Age range covered. (2) Geographical provenance of studied material. (3) General topic of paper, N.B. Biostratigraphy - applied biostratigraphic study. Zonation - development of zonation scheme. (4) Particular feature of the abstract. We are very grateful to the co-operative set of authors who sent abstracts byE-mail or on disk, and to most authors for submitting their abstracts on or near the dealine and for closely observing the reference format, etc. Jeremy R. Young, Paul R. Bown Abbreviations in the abstracts. a, ka, Ma- year, 1000 years, 1,000,000 years e.g. "deposition occurred over a 1Ma period". ,i, t.a. Ma- 1 year ago, 1000 years ago, 1,000,000 years ago; e.g. "deposition occurred between 19 and 20M.il". We have applied this as a standard system throughout the volume. P'ecoVoc - palaeoecology and palaeoceanography s.s. - sensu stricto, narrow definition. s.l. - sensu lato, broad definition. p.p .-pro parte; in part Florence 1989 - Jos~ invites the IN A to. come to Salamanca. (Photo Ben Prins) 42 INA Newsletter 15/2, 1993 -Salamanca Abstracts CONTENTS EDITORS NOTES AND ACKNOWLEDGEMENTS ............................. 42 STRATIGRA.PHICAL GUIDE TO ABSTRACTS .......................... 48 Tithordan and Cretaceous calcareous nannofossil biostratigr!;i: r<y in Hae Betic Cordillera (Southern Spain) Roque Aguado ...................................................... 50 P Tertiary evolution of the Regenda Palaeocanyon (Espirito Santo Basin, Brazil) according to calcareous m.mnoplankton biostratigraphy Rogerio Loureiro Antunes . 52 Morphometrkal variations of Quaternary Coccolithm pelagicus coccoliths from the northern North Atlantic and their palaooceanographical implications K.-H. BaUI1Ulnn. ...................................................... 52 Jurassic calcareous nannofossils from Portugal lames A. Bergen ..................................................... 53 Calcareous ruumofossils from the Vocontian Trough (S.E. France) and DSDP Site 534: New improvements in mid-Meso:rok biostratigraphc resolution and calibration, associated sea level trends, and assemblage turnovers Ja'n"f.eS A. Bergen ..................................................... 53 P Tethyan Late Bathonian to Tithonian nannofossil biostratigraphic events from SE France and DSDP Site 534: Emphasis on Cailovian events and regional correlations (Portugal & Northwest Europe). lames A. Bergen & Silvia Gardin . 54 P Evenness and species-richness in modern cocoolith and foraminifera assemblages J. Bollmann, H. Hilbrecht, & H.R. Thierstein ............................... 55 P Early Cretaceous nannofossils from the eastern Indian Ocean: Biostratigraphic and biogeo- graphic observations Paul R. Bown ....................................................... 55 Nannofossil-lagerstatte: The Toardan (Lower Jurassic) of Northern Germany Paul R. Bown ....................................................... 56 Paiaooceanographical.significance of iate Cretaceous nannofloras from the indian ocean Jackie Burnett .............................. ~ ........................ 56 P Biostratigrapby in the biscay region: the KIT boundary sequences at Zumaya, Hendaye and Bidart re..examined Jackie ....................................................... 57 P stratigraphy of Ilerdbm (Southern Pyrenees, Spain) Mario Carminatti & Giu.liana Villa ...................................... 57 P The Jurassic sequence of the B.reggia Gorge: Calcareous nannofossil and foraminifera biostraUgraphy Miriam Cobianchi & Camilla Pirini Radrizzani .............................. 57 Nannoplankton of recent sediments of the CataJano-Baleark sea (NW Mediterranean) Uui"sa Cros . 58 P AppUcations of on the Bra::diian continental margins Armando Scarparo Cunha, Loureiro An.tunes, Luiz Ca.rlos Veiga de Oliveira, & Seirin Shimabukuro . 58 Evolution of calcareous mmnoftora in Cenoroic Atlantic and Indian Oceans Olga B. Dmitren.ko .................................................... 59 INA Newsletter 1512. 199:3 - Sal.amllllCa Abstracts 43 High-resolution investigations into changes of calcareous nannoplankton associations during the last 500 ka of the Cretaceous Thomas W. Ehrendorfer ................................................ 59 P The calcareous nannofossil species Nephrolith us jrequens Gorka (1957) and its morphotypes Thomas W. Ehrendorfer . 60 Speciation of Mesozoic Calcareous nannofossils forewarn anoxic events Elisabetta Erba . 60 Calcareous nannofossils and palaeoproductivity: Examples from Campanian-Maastrichtian and KIT boundary strata in Israel Yoram Eshet . 6 1 Links between nannofossil preservation and carbonate sedimentation in neogene sediments from the Eastern Equatorial Pacific (ODP Leg 138) J.W. Farrell, I. Raffi, J.A. Flores, & K.C. Emeis .............................. 62 W A comprehensive view on the nannofossil study of the KIT boundary, with some additional data from central Tethys Andrea Fiorentino .................................................... 62 Late Quaternary coccoliths from a western Mediterranean core palaeoceanographic and palaeoenvironmental implications Jose-Abel Flores, F.J..Sierro, A Vazquez. & I. Zamarreno, ..................... 63 Effects of the Late PHocene glaciation on the benthic and planktonic communities in the North Atlantic (DSDP Site 606) G. Frances, F .J. Sierro & J.A. Flores ...................................... 64 Biostratigraphic responses to depositional systems tracts given by nannoconid assemblages (Lower Cretaceous of SE France) Si/via Gardin ........................................................ 65 Calcareous nannoplankton in the Benguela upwelling system, SE Atlantic: Ecology, environment Jacques Giraudeau ................................................... 66 Marine stratigraphy of the Upper Pliocene-Lower Pleistocene of Western Syria: New nannoplankton and palaeomagnetic data Larisa. A. Golovina, E. V. Deviatkin, A.E. Dodonov, V.M. Trubikhin, K. Khatib, & H. Nseir ......................................................... 67 Ranking of differential dissolution of terminal Cretaceous calcareous nannofossils Anders Henriksson & Bjorn Malmgren ..................................... 67 A quick and easy method for estimating absolute abundances of calcareous nannofossils Anders Henriksson .................................................... 68 Calcareous nannoplankton biostratigraphy of the terminal flysch sediments of the Krosno Beds. (Polish Carpathians, Silesian Unit) Malgorzata Iwaniec & Janusz M. Slezak ................................... 68 Reflections on the biological affinities of the calcareous nannofossils Marie-Christine Janin ................................................. 69 P A review of the Syracosphaeraceae Ric W. Jordan, Annelies Kleijne & Berit R. Heimdal .......................... 69 High-resolution biostratigraphy: A preliminary global composite scheme for the Late Quaternary Ric W. Jordan & P.P.E. Weaver ......................................... 70 44 INA Newsletter 15/2, 1993 - Salamanca Abstracts P New ideas on the origin and early evolution of placolith coccoliths in the Early Jurassic: Families Bussoniaceae, Biscutaceae and Ellipsagellosphaeraceae Eric de Kaenel & lames A. Bergen ....................................... 70 Morphometric study of Calcidiscus leptoporus and C. macintyrei and its biochronological applications Eric de Kaenel . 71 P Late Pliocene nannofossil biostratigraphy at Site 607. DSDP-IPOD Leg 94 (North Atlantic Ocean) and its oceanographic significance Koji Kameo & Tokiyuki Sato ............................................ 72 Calcareous nannofossil assemblages of the Late Cenomanian, Late Campanian -Early Maastrichtian and Late Oligocene of Tanzania Amina Karega . 72 Coccolithophorid distribution in the Indian Ocean to Eastern North Atlantic surface waters: A comparison with the Atlantic and Pacific biogeographic zonations Annelies Kleijne ...................................................... 73 P Palaeoecological significance of calcareous dinoflagellate