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Paleogene and Neogene Time Scale of GTS 2012 Paleogene Neogene N. Vandenberghe 1, F.J. Hilgen 2 and R.P. Speijer 3 F.J. Hilgen 1, L.J. Lourens 2 and J.A. Van Dam 3 1. Department of Earth and Environmental Sciences, K. U. Leuven, Celestijnenlaan 200E, B - 3001 Leuven, Belgium, [email protected] 1. Department of Earth Sciences, Utrecht University, Budapestlaan 4, 3584 CD Utrecht, The Netherlands, [email protected] 2. Department of Earth Sciences, Utrecht University, Budapestlaan 4, 3584 CD Utrecht, The Netherlands, [email protected] 2. Department of Earth Sciences, Utrecht University, Budapestlaan 4, 3508 TA Utrecht, The Netherlands, [email protected] 3. Department of Earth and Environmental Sciences, K. U. Leuven, Celestijnenlaal 200E, B - 3001 Leuven, Belgium, [email protected] 3. Institut Català de Paleontologia Miquel Crusafont (ICP), Campus de la UAB, Mòdul ICP, E-08193 cerdanyola del Vallès, Spain, [email protected] Of the 9 Paleogene stages, only 3 remain to be formally defined: the Bartonian and Priabonian stages of upper Paleogene Time Scale Eocene and the Chattian (base of upper Oligocene). Larger 18 13 AGE Epoch/Age Polarity Mega- Dinoflagellate Cysts North American O C AGE -1.0 -0.5 -0.5 Of the 8 Neogene stages, only 2 remain to be formally defined: the Burdigalian and Langhian stages of lower and middle Mio- (Ma) Chron Cycles Planktonic Foraminifera Benthic Calcareous Nannofossils Radiolarians NALMA MP European Mammals ALMA SALMA 0.0 0.5 1.0 1.5 2.0 0.0 0.5 1.0 1.5 2.0 2.5 Age (Stage) (Ma) During the Paleogene, the global climate, being warm (Stage) Northwestern Europe Mammals other zones Foraminifera ELMA R T low latitude southern high latitude until the late Eocene, shows a significant cooling trend cene. b Globoquadrina dehiscens SBZ24 Ar3 Cephalogale, Menoceras, C6B Moropus, Ysengrinia, MN2 M1 NN2 Discoaster druggi Neogene "Paragloborotalia" kugleri CN1 b Zodiolestes Neogene culminating in a sustained cool Oligocene. Superposed N4 a Invertocysta Issiodoromys Theridomyidae Spreading rate history of South Atlantic 23.0 Aq1 NN1 tabulata MN1 bransatensis 23.0 D16 RP22 MP30 Mi1 35 The biostratigraphy of Cenozoic marine successions is well established using several microfossil groups. Calcareous nanno- C6C Nimravinae on this general climatic trend are several short-lived Reticulofenestra bisecta Membranophoridium Issiodoromys Issiodoromys un-zoned MP29 (>10 micron) a Tuberculodinium aspinatum Cyrtocapsella pseudanoema pseudanoema Cande-Kent 1995 fossils and planktonic foraminifera are the most widely used groups for biostratigraphy in open marine deposits, especially in vancampoae Lychnocanoma tetrapera oxygen- and carbon-isotope events that are useful for Issiodoromys O7 elongata MP28 Issiodoromys GTS 2004 C7 limognensis limognensis low- and mid-latitude settings. The reversal history of the Earth’s magnetic field has been the backbone of the Cenozoic corre- "Paragloborotalia" SBZ23 Distatodinium biffii global correlation. GTS 2012 pseudokugleri Issiodoromys Issiodoromys 30 25 C7A NP25 MP27 quercyi quercyi, 25 P22 RP(SH) Ar2 Dichobunidae Oi2c lations, especially between marine and terrestrial settings. Chattian 16 Chattian C8 c I. pauffiensis, O6 Anoplotheriidae CP19 RP21 MP26 The Neogene age model has astronomical tuning “downward” relative to the Present of magnetic polarity chrons and major mi- Arvernian Arikareean 25 Pentadinium laticinctum Plesiosorex, Deseadan D15 imaginatum Axoprunum? Issiodoromys pauffiensis Oi2b C9 Paragloborotalia opima Sphenolithus irregularis Paleogene Age Model crofossil and nannofossil datums. Ages for other marine biostratigraphic datums, terrestrial mammal zones, stable isotope distentus O5 SBZ22b Svalbardella Pseudotheridomys, Plagiolophus, cooksoniae 28.1 Parvericius Nyctitheriidae, Tabenbulakian 28.1 events and sea-level trends are mainly derived from correlations to this astronomically tuned bio-magnetostratigraphic scale Ch1 P21 b MP25 B. blainvillei Oi2a 20 NP24 Dorcadospyris Poebrotherium Blainvillimys Aquitanian 20 Chiloguembelina 23.03 Mioc. C10 Globigerina Saturnodinium ateuchus blainvillei O4 cubensis (LCO) pansum angulisuturalis Ar1 25 Tristylospyris Chattian SBZ22a Enneadocysta Palaeocastor nebraskensis, Blainvillimys Oi2* Spreading rate (km/myr) triceros Oligocene Sphenolithus ciperoensis a pectiniformis Plesioisminthus, Kalobatippus MP24 heimersheimensis 28.09 Issiodoromys minor P20 O3 30 C11 CP18 Apteodinium Rupelian 30 Sphenolithus distentus 30 Oligocene b spiridoides Rhombodinium RP(SH) Merycoidodon Pseudosciuridae, 33.9 15 draco 15 MP23 Blainvillimys helmeri, I. medius, Turborotalia B. helmeri 35 NP23 Viverridae Priabonian Rupelian ampliapertura CP17 Enneadocysta Oi2 Rupelian 37.8±0.5 P19 O2 arcuata RP20 B. gregarius, D14 Entelodon, 40 Bartonian Reticulofenestra Tinguirirican 41.2±0.5 Miocene Oligocene Eocene Paleocene Late Cretaceous Plagiolophus Pleist. Plio. umbilicus (south high lat.) a Whitneyan Protoceras MP22 C12 SBZ21 Suevian ministri, Oi1b 10 Blainvillimys gregarius, Primates Lutetian Reticulofenestra Issiodoromys medius 45 0 10 20 30 40 50 60 70 80 Pseudohastigerina NP22 Wetzeliella Ischyromys, Bothriodon, Eocene umbilicus (low-mid lat.) Age (Ma) 47.8±0.2 naguewichiensis gochtii Mesohippus Bothriodon Spiniferites sp. 1 Oi1a Age in Ma P18 O1 Bothriodon 50 Hypertragulus Hsandagolian CP16 Coccolithus formosus D13 Chiropteridium (Manum et al., 1989) MP21 Palaeotherium Lithocyclia Axoprunum? calcaratus, Ypresian galea Orellan angusta irregularis Suoidea Brontotheriidae Rhinocerotidae, 33.9 NP21 Clausicoccus subdistichus Xiphodontidae, 33.9 Combined Age Model Ru1 (top of acme) Thalassiphora Areosphaeridium MP20 sue - fro Cricetidae, Mustersan Oi1 55 56.0 c Entelodon, Amphimerycidae C13 Hantkenina alabamensis reticulata diktyoplokum Lithocyclia Oromerycidae, E16 aristotelis medium - Castoridae Discoaster saipanensis Cylindrodontidae MP19 59.2 Thanetian RP19 group Ch3 Cricetidae, curtum P. m. medium P16 / SBZ20 Glaphyrocysta Palaeotherium 60 Selandian Mustelidae m. medium 61.6 Neogene & Quaternary Time Scale 35 P17 Globigerinatheka index Discoaster semitecta Ergilian 35 barbadiensis Palaeotherium P. muehlbergi Danian Larger Mega- C15 E15 muehlbergi thaleri, Paleocene NP19- thaleri, 65 66.04±0.05 AGE Polarity Dinoflagellate Cysts Radiolarians Cycles D12 b RP(SH) Ch2 Merycoidodon, pseudo - Isoptychus I. pseudo- Planktonic Foraminifera Benthic Calcareous Nannofossils Priabonian 20 14 Nimravidae Multituberculata, Priabonian (Ma) Epoch/Age Chron MP18 thaleri pseudosiderolithicus siderolithicus Cretaceous R T CP15 RP18 Apatotheria The astronomical tuning of the Cenozoic geomagnetic time Period (Stage) Foram. Northwestern Europe C16 SBZ19 70 Thalassiphora Holoc. 0.126 Tarantian NN21 CN15 Emiliania huxleyi Spiniferites elongatus RN17 Buccinosphaera invaginata LGM Globigerinatheka Isthmolithus recurvus Hyopsodus Headonian Barrancan 0 c fenestrata Calocyclas bandyca Chadronian Isoptychus vect - Palaeotherium 500 600 700 800 900 1000 1100 1200 1300 1400 scale implies a considerable variation in spreading rates for b NN20 Pseudoemiliania RN16 semiinvoluta magnum, euzetensis Ch1 Entelodontidae, Ursidae, nanus Distance (km in S. Atlantic marine magnetic anomaly profile) 0.78 Ionian CN14 Gephyrocapsa lacunosa RN15 Collosphaera Stylatractus universus P15 E14 NP18 Chi. oamaruensis Heteraulacacysta Eucyrtidium MP17 b Isoptychus C1 Globorotalia tosaensis spp. reentrance Tectatodinium tuberosa (common) a Rhombodinium porosa RP17 Cryptocarpium azyx spinosum Bothriodon, Poebrotherium euzetensis the South Atlantic reference scale of marine magnetic N22 Pt1 pellitum RN14 ste-dep Lophiotherium, Ulangochuian (reemG event) 37.8 perforatum MP17 a 37.8 Calabrian Globigerinoides NN19 Discoaster Pr1 SBZ18 Quercygale a b C17 Palaeotherium fistulosus CN13 brouweri Anthocyrtidium angulare Chiasmolithus Rottnestia borussica Plesiadapiformes, anomalies. Following a slowing in the latest Cretaceous 1.81 Gephyrocapsa spp. RN13 oamaruensis castrense (=bmG event) Spiniferites Chiasmolithus b Du2 Nyctitheriidae robiacense Propalaeotherium, Discoaster (rare) Wetzeliella Ischyromys lautricense PL6 G. pseudomiocenica NN18 D21 pachyderma Pterocanium prismatium Morozovelloides grandis D11 L. stehlini, Gelasian C2 (Indo-Pac.) pentaradiatus simplex RP(SH) - Quaternary through Paleogene, spreading rates rose to a plateau for Pleistocene RN12b NP17 sidero- Hyrachyidae, 2.59 G. miocenica (Atl.) NN17 crassatus Heteraulacacysta? RP16 13 MP16 Leptolophus PL5 Atl. Discoaster surculus Anthocyrtidium jenghisi E13 a Rhombodinium lithicum stehlini Lophiodontidae, CN12 Invertocysta RN12a P14 porosum leptalea Du1 Anthracotheriidae, Canidae, CRZ Palaeotherium N20/ PL4 Atl. tabulata Amphicyonidae, Mesohippus, late Eocene through early Miocene, then have slowed to the Piacenzian D. altispira (Atl.) NN16 Bartonian Lophiodon castrense Bartonian PL5 Pac. Globorotalila Discoaster tamalis a RN11b Stichocorys peregrina Corrudinium Podocyrtis (Lampterium) Lithapium mitra Duchesnean N21 Orbulinoides SBZ17 b Rhombodinium Rhinocerotidae lautricense robiacense C2A miocenica (Atl.) Discoaster 40 C18 CP14 draco incompositum goetheana 40 3.6 PL4 Pac S. seminulina Spiniferites cf. beckmanni present day. A similar general conclusion was apparent asymmetricus RN11a P13 E12 Taeniodonta PL3 NN15 (FCO) Reticulofenestra pseudofurcatus Phormostichoartus fistula Orbulinoides RP15 Podocyrtis (Lampterium) Dentoglobigerina pseudoumbilicus Areoligera tauloma Sharamurunian NN14 CN11 RN10 chalara MP15 PL2 beckmanni Chiasmolithus
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  • New Paroxyclaenid Mammals from the Early Eocene of the Paris Basin

    New Paroxyclaenid Mammals from the Early Eocene of the Paris Basin

    Published in "Journal of Systematic Palaeontology 17(20): 1711–1743, 2019" which should be cited to refer to this work. New paroxyclaenid mammals from the early Eocene of the Paris Basin (France) shed light on the origin and evolution of these endemic European cimolestans aà b c d Floreal Sole , Olivia Plateau ,Kevin Le Verger and Alain Phelizon aDirectorate Earth and History of Life, Palaeobiosphere Evolution Research Unit, Royal Belgian Institute of Natural Sciences, Rue Vautier 29, B–1000 Brussels, Belgium; bUniversite de Fribourg, Faculte des sciences, Departement de geosciences, Chemin du musee 6, Fribourg 1700, Switzerland; cCR2P–MNHN, UPMC-Paris 6 (Sorbonne Universites)–Museum National d’Histoire Naturelle, CP 38, 8 rue Buffon, 75005, Paris, France; dSocieted’Etude des Sciences Naturelles de Reims, 122 bis, rue du Barbatre,^ 51100 Reims, France We present new species of an enigmatic family of mammals, which is endemic to Europe, the Paroxyclaenidae: Merialus bruneti sp. nov., Fratrodon tresvauxi gen. et sp. nov., Paraspaniella gunnelli gen. et sp. nov., and Sororodon tresvauxae gen. et sp. nov. The fossils described come from six localities of the Ypresian of the Paris Basin (France): Pourcy (MP7), Mutigny, Avenay, Conde-en-Brie (MP8 þ 9), Grauves and Premontre (MP10). They allow the description of three new genera and four new species belonging to the subfamilies Merialinae and Paroxyclaeninae. Two of these new species represent the earliest occurrence of each subfamily. Fossils from Mutigny, Avenay and Conde-en- Brie indicate that merialines were more abundant than paroxyclaenines during the Ypresian. Surprisingly, merialines disappeared from the fossil record at the end of the Ypresian – the youngest records are close to MP10 – while the paroxyclaenines were present in Europe until the end of the middle Eocene.
  • Sarah N. Davis Curriculum Vitae Jackson School of Geosciences Sdavis6@Utexas.Edu the University of Texas at Austin Sarahndavis.Weebly.Com

    Sarah N. Davis Curriculum Vitae Jackson School of Geosciences [email protected] the University of Texas at Austin Sarahndavis.Weebly.Com

    Sarah N. Davis Curriculum Vitae Jackson School of Geosciences [email protected] The University of Texas at Austin sarahndavis.weebly.com EDUCATION 2016 - Present Ph.D.* The University of Texas at Austin, Geological Sciences Advisor: Julia Clarke 2016 B.S. The University of Arizona, Biology with Honors, Cum Laude 2016 B.A. The University of Arizona, French Language Cum Laude GRANTS, SCHOLARSHIPS, AND FELLOWSHIPS (total awarded: $156,230) 2019 Whitney Endowed Presidential Scholarship in Paleontology ($3,500) Heese Research Award, the American Ornithological Society ($1,230) 2018 Broquet Charl Memorial Fellowship ($12,000) 2017 NSF Graduate Research Fellowship ($102,000 over three years) Lundelius Research Grant ($1,500) 2012 - 2016 Regents High Honors Endorsement Scholarship ($36,000 over four years) HONORS AND AWARDS 2019 Academic Enrichment Award, The University of Texas Award to support invited speakers for our seminar series 2018 Off Campus Research Award, Jackson School of Geosciences Analytical Research Award, Jackson School of Geosciences 2017 Outstanding Teaching Assistant, Jackson School of Geosciences 2016 Excellence in Undergraduate Research, The University of Arizona 2015 Lucretia B Hamilton Emerging Researcher Award, The University of Arizona 2015 - 2016 Dean’s List: The University of Arizona College of Science POSITIONS 2016 - Present PhD Candidate, The University of Texas at Austin Graduate Dissertation Research 2016 - 2018 Teaching Assistant, The University of Texas at Austin 2014 - 2016 Undergraduate Research Assistant, The University of Arizona REU and Thesis work with Alexander Badyaev 2014 Fossil Preparator and Scientific Illustrator, GeoDécor Fossils and Minerals ARTICLES IN REVIEW 1. Davis, S.N., Torres, C.R., Musser, G.M., Proffitt, J.V., Crouch, N.M.A., and Clarke, J.A.