New Patagonian baurusuchids (Crocodylomorpha; Notosuchia) from the Bajo de la Carpa Formation (Upper Cretaceous; Neuquén, Argentina): New evidences of the early sebecosuchian diversification in Gondwana

The Bajo de la Carpa Formation (Santonian) of the Neuquén basin (southwestern Argentina) has one of the most complete crocodyliform records of South America, together with the Adamantina and Marília formations of Brazil. In this contribution we report two fragmentary individuals from two different l...

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Detalles Bibliográficos
Publicado: 2018
Materias:
Argentina
Baurusuchidae
Cretaceous
Neuquén basin
Notosuchia
Patagonia
carnivore
crocodilian
geographical distribution
Gondwana
phylogenetics
reptile
type locality
Brazil
Marilia
Neuquen Basin
Sao Paulo [Brazil]
Crocodylomorpha
Sebecosuchia
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16310683_v17_n8_p504_Leardi
http://hdl.handle.net/20.500.12110/paper_16310683_v17_n8_p504_Leardi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_16310683_v17_n8_p504_Leardi
record_format dspace
spelling paper:paper_16310683_v17_n8_p504_Leardi2023-06-08T16:25:36Z New Patagonian baurusuchids (Crocodylomorpha; Notosuchia) from the Bajo de la Carpa Formation (Upper Cretaceous; Neuquén, Argentina): New evidences of the early sebecosuchian diversification in Gondwana Argentina Baurusuchidae Cretaceous Neuquén basin Notosuchia Patagonia carnivore Cretaceous crocodilian geographical distribution Gondwana phylogenetics reptile type locality Argentina Brazil Marilia Neuquen Basin Patagonia Sao Paulo [Brazil] Crocodylomorpha Sebecosuchia The Bajo de la Carpa Formation (Santonian) of the Neuquén basin (southwestern Argentina) has one of the most complete crocodyliform records of South America, together with the Adamantina and Marília formations of Brazil. In this contribution we report two fragmentary individuals from two different localities of the Bajo de la Carpa Formation: a middle-sized individual (MLP 26-IV-30-2), represented by postcranial remains from the Boca del Sapo locality and a large-bodied individual (MACN Pv-RN 1150), consisting only of snout elements from Paso Córdoba locality. Despite the remains of both specimens are fragmentary, they display anatomical characters of a specialized notosuchian carnivore clade: Baurusuchidae. Our phylogenetic analysis recovers these new individuals as non-baurusuchine baurusuchids, although they take multiple phylogenetic positions on the different most parsimonious trees. These new remains highlight the relevance of the Bajo de la Carpa Formation for understanding the rise of notosuchians during the Late Cretaceous. © 2018 Académie des sciences 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16310683_v17_n8_p504_Leardi http://hdl.handle.net/20.500.12110/paper_16310683_v17_n8_p504_Leardi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Argentina
Baurusuchidae
Cretaceous
Neuquén basin
Notosuchia
Patagonia
carnivore
Cretaceous
crocodilian
geographical distribution
Gondwana
phylogenetics
reptile
type locality
Argentina
Brazil
Marilia
Neuquen Basin
Patagonia
Sao Paulo [Brazil]
Crocodylomorpha
Sebecosuchia
spellingShingle Argentina
Baurusuchidae
Cretaceous
Neuquén basin
Notosuchia
Patagonia
carnivore
Cretaceous
crocodilian
geographical distribution
Gondwana
phylogenetics
reptile
type locality
Argentina
Brazil
Marilia
Neuquen Basin
Patagonia
Sao Paulo [Brazil]
Crocodylomorpha
Sebecosuchia
New Patagonian baurusuchids (Crocodylomorpha; Notosuchia) from the Bajo de la Carpa Formation (Upper Cretaceous; Neuquén, Argentina): New evidences of the early sebecosuchian diversification in Gondwana
topic_facet Argentina
Baurusuchidae
Cretaceous
Neuquén basin
Notosuchia
Patagonia
carnivore
Cretaceous
crocodilian
geographical distribution
Gondwana
phylogenetics
reptile
type locality
Argentina
Brazil
Marilia
Neuquen Basin
Patagonia
Sao Paulo [Brazil]
Crocodylomorpha
Sebecosuchia
description The Bajo de la Carpa Formation (Santonian) of the Neuquén basin (southwestern Argentina) has one of the most complete crocodyliform records of South America, together with the Adamantina and Marília formations of Brazil. In this contribution we report two fragmentary individuals from two different localities of the Bajo de la Carpa Formation: a middle-sized individual (MLP 26-IV-30-2), represented by postcranial remains from the Boca del Sapo locality and a large-bodied individual (MACN Pv-RN 1150), consisting only of snout elements from Paso Córdoba locality. Despite the remains of both specimens are fragmentary, they display anatomical characters of a specialized notosuchian carnivore clade: Baurusuchidae. Our phylogenetic analysis recovers these new individuals as non-baurusuchine baurusuchids, although they take multiple phylogenetic positions on the different most parsimonious trees. These new remains highlight the relevance of the Bajo de la Carpa Formation for understanding the rise of notosuchians during the Late Cretaceous. © 2018 Académie des sciences
title New Patagonian baurusuchids (Crocodylomorpha; Notosuchia) from the Bajo de la Carpa Formation (Upper Cretaceous; Neuquén, Argentina): New evidences of the early sebecosuchian diversification in Gondwana
title_short New Patagonian baurusuchids (Crocodylomorpha; Notosuchia) from the Bajo de la Carpa Formation (Upper Cretaceous; Neuquén, Argentina): New evidences of the early sebecosuchian diversification in Gondwana
title_full New Patagonian baurusuchids (Crocodylomorpha; Notosuchia) from the Bajo de la Carpa Formation (Upper Cretaceous; Neuquén, Argentina): New evidences of the early sebecosuchian diversification in Gondwana
title_fullStr New Patagonian baurusuchids (Crocodylomorpha; Notosuchia) from the Bajo de la Carpa Formation (Upper Cretaceous; Neuquén, Argentina): New evidences of the early sebecosuchian diversification in Gondwana
title_full_unstemmed New Patagonian baurusuchids (Crocodylomorpha; Notosuchia) from the Bajo de la Carpa Formation (Upper Cretaceous; Neuquén, Argentina): New evidences of the early sebecosuchian diversification in Gondwana
title_sort new patagonian baurusuchids (crocodylomorpha; notosuchia) from the bajo de la carpa formation (upper cretaceous; neuquén, argentina): new evidences of the early sebecosuchian diversification in gondwana
publishDate 2018
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16310683_v17_n8_p504_Leardi
http://hdl.handle.net/20.500.12110/paper_16310683_v17_n8_p504_Leardi
_version_ 1768541579060969472

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