Cricosaurus (Thalattosuchia, Metriorhynchidae) survival across the J/K boundary in the High Andes (Mendoza Province, Argentina)

Metriorhynchidae is an extinct group of Jurassic–Cretaceous crocodylomorphs that developed a fully pelagic lifestyle. Its Jurassic record is outstanding (it includes around 40 nominal species), while the records that can be restricted to the Cretaceous are particularly sparse. Here we describe a par...

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Autores principales: Herrera, Laura Yanina, Fernández, Marta Susana, Vennari, Verónica V.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2021
Materias:
Ciencias Naturales
Crocodylomorpha
Ammonoidea
Lower Cretaceous
Vaca Muerta Formation
Neuquén Basin
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/141314
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-141314
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
Crocodylomorpha
Ammonoidea
Lower Cretaceous
Vaca Muerta Formation
Neuquén Basin
spellingShingle Ciencias Naturales
Crocodylomorpha
Ammonoidea
Lower Cretaceous
Vaca Muerta Formation
Neuquén Basin
Herrera, Laura Yanina
Fernández, Marta Susana
Vennari, Verónica V.
Cricosaurus (Thalattosuchia, Metriorhynchidae) survival across the J/K boundary in the High Andes (Mendoza Province, Argentina)
topic_facet Ciencias Naturales
Crocodylomorpha
Ammonoidea
Lower Cretaceous
Vaca Muerta Formation
Neuquén Basin
description Metriorhynchidae is an extinct group of Jurassic–Cretaceous crocodylomorphs that developed a fully pelagic lifestyle. Its Jurassic record is outstanding (it includes around 40 nominal species), while the records that can be restricted to the Cretaceous are particularly sparse. Here we describe a partial skull of a new species of Cricosaurus, Cricosaurus puelchorum sp. nov., from the lower Berriasian of the Vaca Muerta Formation (Neuquen Basin, Argentina). The description of the specimen reveals a series of autapomorphies and a unique combination of characters that justify the creation of a new species. Phylogenetic analysis places Cricosaurus puelchorum sp. nov. closer to three upper Kimmeridgian–lower Tithonian species of southern Germany. The new taxon was recovered in connection with an accurate ammonoid-based biostratigraphic control and allows confirming the survival of Cricosaurus across the J/K boundary at the southeastern Pacific.
format Articulo
Articulo
author Herrera, Laura Yanina
Fernández, Marta Susana
Vennari, Verónica V.
author_facet Herrera, Laura Yanina
Fernández, Marta Susana
Vennari, Verónica V.
author_sort Herrera, Laura Yanina
title Cricosaurus (Thalattosuchia, Metriorhynchidae) survival across the J/K boundary in the High Andes (Mendoza Province, Argentina)
title_short Cricosaurus (Thalattosuchia, Metriorhynchidae) survival across the J/K boundary in the High Andes (Mendoza Province, Argentina)
title_full Cricosaurus (Thalattosuchia, Metriorhynchidae) survival across the J/K boundary in the High Andes (Mendoza Province, Argentina)
title_fullStr Cricosaurus (Thalattosuchia, Metriorhynchidae) survival across the J/K boundary in the High Andes (Mendoza Province, Argentina)
title_full_unstemmed Cricosaurus (Thalattosuchia, Metriorhynchidae) survival across the J/K boundary in the High Andes (Mendoza Province, Argentina)
title_sort cricosaurus (thalattosuchia, metriorhynchidae) survival across the j/k boundary in the high andes (mendoza province, argentina)
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/141314
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AT vennariveronicav cricosaurusthalattosuchiametriorhynchidaesurvivalacrossthejkboundaryinthehighandesmendozaprovinceargentina
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