Plesiosaurs (Diapsida, Sauropterygia) from Late Cretaceous (late Campanian-early Maastrichtian) marginal marine environments from North Patagonia

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During the late Campanian and early Maastrichtian, Northern Patagonia suffered the first stage of the Atlantic marine ingression that reached the Neuquén Basin. The Allen and La Colonia formations show the early stages of this change, and were deposited in a complex association of marginal marine en...

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Detalles Bibliográficos
Autor principal: O'Gorman, José Patricio
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Ciencias Naturales
Elasmosauridae
Polycotylidae
Cretácico tardío
Patagonia
Sulcusuchus erraini
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/98079
https://ri.conicet.gov.ar/11336/55343
http://www.peapaleontologica.org.ar/index.php/peapa/article/view/105
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-98079
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Elasmosauridae
Polycotylidae
Cretácico tardío
Patagonia
Sulcusuchus erraini
spellingShingle Ciencias Naturales
Elasmosauridae
Polycotylidae
Cretácico tardío
Patagonia
Sulcusuchus erraini
O'Gorman, José Patricio
Plesiosaurs (Diapsida, Sauropterygia) from Late Cretaceous (late Campanian-early Maastrichtian) marginal marine environments from North Patagonia
topic_facet Ciencias Naturales
Elasmosauridae
Polycotylidae
Cretácico tardío
Patagonia
Sulcusuchus erraini
description During the late Campanian and early Maastrichtian, Northern Patagonia suffered the first stage of the Atlantic marine ingression that reached the Neuquén Basin. The Allen and La Colonia formations show the early stages of this change, and were deposited in a complex association of marginal marine environments, including coastal and marine deposits (<i>i.e.</i>, flood plains, estuaries and lagoons). The plesiosaurs from the Allen and La Colonia formations included at least three species, each with a distinctive morphotype, representing a high diversity in the Late Cretaceous. The only species that preserved cranial material, <i>Sulcusuchus erraini</i> Gasparini and Spalleti, is a strange polycotylid characterized by the presence of deep grooves in the rostrum and mandible. The other two species correspond to aristonectine and non-aristonectine elasmosaurids. The former are distinguished by relatively large skulls and a high number of teeth compared to other elasmosaurids, whereas the non-aristonectine elasmosaurids are characterized by their relatively small body sizes, despite being adult specimens.
format Articulo
Articulo
author O'Gorman, José Patricio
author_facet O'Gorman, José Patricio
author_sort O'Gorman, José Patricio
title Plesiosaurs (Diapsida, Sauropterygia) from Late Cretaceous (late Campanian-early Maastrichtian) marginal marine environments from North Patagonia
title_short Plesiosaurs (Diapsida, Sauropterygia) from Late Cretaceous (late Campanian-early Maastrichtian) marginal marine environments from North Patagonia
title_full Plesiosaurs (Diapsida, Sauropterygia) from Late Cretaceous (late Campanian-early Maastrichtian) marginal marine environments from North Patagonia
title_fullStr Plesiosaurs (Diapsida, Sauropterygia) from Late Cretaceous (late Campanian-early Maastrichtian) marginal marine environments from North Patagonia
title_full_unstemmed Plesiosaurs (Diapsida, Sauropterygia) from Late Cretaceous (late Campanian-early Maastrichtian) marginal marine environments from North Patagonia
title_sort plesiosaurs (diapsida, sauropterygia) from late cretaceous (late campanian-early maastrichtian) marginal marine environments from north patagonia
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/98079
https://ri.conicet.gov.ar/11336/55343
http://www.peapaleontologica.org.ar/index.php/peapa/article/view/105
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bdutipo_str Repositorios
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