Eocene Antarctica:a window into the earliest history of modern whales

作     者：Mónica R.BUONO R.Ewan FORDYCE Felix G.MARX Marta S.FERNANDEZ Marcelo A.REGUERO 

作者机构：Instituto Patagónico de Geología y PaleontologíaCCT CONICET-CENPATBvd.Brown 2915U9120ACDPuerto MadrynChubutArgentina Department of GeologyUniversity of Otago360 Leith WalkPO Box 56DunedinOtago 9054New Zealand Departments of Paleobiology and Vertebrate ZoologyNational Museum of Natural HistorySmithsonian InstitutionWashington DCUSA Directorate of Earth and History of LifeRoyal Belgian Institute of Natural SciencesBrusselsBelgium Department of GeologyUniversity of LiègeB18Quartier Agora14 Allée du 6 Aout4000 LiègeBelgium School of Biological SciencesMonash UniversityClaytonAustralia PalaeontologyMuseums VictoriaMelbourneAustralia CONICET-División Paleontología VertebradosUnidades de InvestigaciónAnexo MuseoFacultad de Ciencias Naturales y MuseoUniversidad Nacional de La Plata60 y 122B1900FWALa PlataArgentina CONICET-División Paleontología de VertebradosMuseo de La PlataPaseo del Bosque s/nB1900FWALa PlataArgentina Instituto Antártico Argentino(Dirección Nacional del Antártico)25 de Mayo 11511650San MartínArgentina 

出 版 物：《Advances in Polar Science》 (极地科学进展（英文版）)

年 卷 期：2019年第30卷第3期

页      面：293-302页

核心收录：

学科分类：070903[理学-古生物学与地层学(含：古人类学)] 0709[理学-地质学] 07[理学] 

基　　金：We thank the Instituto Antártico Argentino and the Fuerza Aérea Argentina  who provided logistic support during field work in Antarctica  as well as the Guest Editors (C. Acosta Hospitaleche  J. Alistair Crame and J. Gelfo) for inviting us to contribute to this special issue 

主　　题：Marambio(Seymour)Island Basilosauridae Mysticeti evolution 

摘      要：The Eocene–Oligocene Southern Ocean is thought to have played a major role in cetacean ***,fossils from its heart—Antarctica—are rare,and come almost exclusively from the Eocene La Meseta and Submeseta formations of Marambio(Seymour)***,we provide a summary and update of this crucial fossil assemblage,and discuss its relevance in the broader context of cetacean *** date,Eocene specimens from Antarctica include basilosaurids,a group of archaic stem cetaceans that had already fully adapted to life in water;and the archaic toothed mysticete Llanocetus,the second oldest crown cetacean on record(ca.34 Ma).This Eocene co-occurrence of stem and crown cetaceans is highly unusual,and otherwise only observed in *** related,at least some of the Antarctic species appear to be different from,and notably larger than their Peruvian counterparts,suggesting an early differentiation of the high latitude cetacean fauna.