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- DescriptionOne of the most intriguing paleobiogeographical phemena involving the origins and gradual sundering of Gondwana concerns the close similarities and, in most cases, inferred sister-group relationships of a number of terrestrial and freshwater vertebrate taxa, e.g., disaurs, flying birds, mammals, etc., recovered from uppermost Cretaceous/ Paleogene deposits of West Antarctica, South America, and NewZealand/Australia. For some twenty five extensive and productive investigations in the field of vertebrate paleontology has been carried out in latest Cretaceous and Paleogene deposits in the James Ross Basin, rtheast of the Antarctic Peninsula (AP), West Antarctica, on the exposed sequences on James Ross, Vega, Seymour (=Marambio) and Sw Hill islands respectively. The available geological, geophysical and marine faunistic evidence indicates that the peninsular (AP) part of West Antarctica and the western part of the tip of South America (Magallanic Region, southern Chile) were positioned very close in the latest Cretaceous and early Paleogene favoring the Overlapping model of South America-Antarctic Peninsula paleogeographic reconstruction. Late Cretaceous deposits from Vega, James Ross, Seymour and Sw Hill islands have produced a discrete number of disaur taxa and a number of advanced birds together with four mosasaur and three plesiosaur taxa, and a few shark and teleostean taxa.
- Author BiographyMarcelo Reguero has studied at the University of Buenos Aires where he received his PhD in Biological Sciences. He is a Researcher for the Instituto Antartico Argentino. He has received the Antarctic Service Medal of the United States of America. His fields of interest include vertebrate paleontology, biogeography, biostratigraphy and high latitude faunas.
- Author(s)Carolina Acosta Hospitaleche,Francisco Goin,Marcelo Reguero,Sergio Marenssi,Tania Dutra
- Date of Publication19/12/2012
- LanguageEnglish & English
- SubjectEarth Sciences
- Series TitleSpringerBriefs in Earth System Sciences
- Place of PublicationDordrecht
- Country of PublicationNetherlands
- Content Note32 black & white illustrations, 17 colour illustrations, 6 black & white tables, biography
- Weight207 g
- Width155 mm
- Height235 mm
- Spine13 mm
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