A new helmeted frog (Anura: Calyptocephalellidae) from an Eocene subtropical lake in northwestern Patagonia, Argentina

Eocene caldera-lake deposits from Rio Pichileufu have yielded anuran remains in association with a taxonomically diverse flora. The floral evidence suggests that these anurans lived under climatic conditions similar to those of extant subtropical rainforests. One of the anurans is a helmeted neobatr...

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Autores principales:	Gomez, R.O., Baez, A.M., Muzzopappa, P.
Formato:	JOUR
Materias:	anatomy climate conditions cranium Eocene frog lacustrine environment new species paleogeography skeleton taxonomy Patagonia Anura Caudiverbera Neobatrachia
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_02724634_v31_n1_p50_Gomez
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_02724634_v31_n1_p50_Gomez
record_format	dspace
spelling	todo:paper_02724634_v31_n1_p50_Gomez2023-10-03T15:15:07Z A new helmeted frog (Anura: Calyptocephalellidae) from an Eocene subtropical lake in northwestern Patagonia, Argentina Gomez, R.O. Baez, A.M. Muzzopappa, P. anatomy climate conditions cranium Eocene frog lacustrine environment new species paleogeography skeleton taxonomy Patagonia Anura Caudiverbera Neobatrachia Eocene caldera-lake deposits from Rio Pichileufu have yielded anuran remains in association with a taxonomically diverse flora. The floral evidence suggests that these anurans lived under climatic conditions similar to those of extant subtropical rainforests. One of the anurans is a helmeted neobatrachian, which is represented by articulated remains and represents a new species that can be assigned to the extant genus Calyptocephalella on the basis of both cranial and postcranial traits. Calyptocephalella pichileufensis, gen. et sp. nov., indicates that, despite the relatively conservative skeletal anatomy of the genus, Calyptocephalella has not always been associated with the temperate austral forests that it inhabits today. The new species also provides evidence of a biotic link with Australia, which has been proposed on the basis of other faunal and floral records, as well as on the paleogeographic history of Patagonia during the mid-Cretaceous-Eocene interval. We also discuss the significance of neobatrachian cranial features that might reflect hyperossification. © 2011 by the Society of Vertebrate Paleontology. Fil:Baez, A.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Muzzopappa, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_02724634_v31_n1_p50_Gomez
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	anatomy climate conditions cranium Eocene frog lacustrine environment new species paleogeography skeleton taxonomy Patagonia Anura Caudiverbera Neobatrachia
spellingShingle	anatomy climate conditions cranium Eocene frog lacustrine environment new species paleogeography skeleton taxonomy Patagonia Anura Caudiverbera Neobatrachia Gomez, R.O. Baez, A.M. Muzzopappa, P. A new helmeted frog (Anura: Calyptocephalellidae) from an Eocene subtropical lake in northwestern Patagonia, Argentina
topic_facet	anatomy climate conditions cranium Eocene frog lacustrine environment new species paleogeography skeleton taxonomy Patagonia Anura Caudiverbera Neobatrachia
description	Eocene caldera-lake deposits from Rio Pichileufu have yielded anuran remains in association with a taxonomically diverse flora. The floral evidence suggests that these anurans lived under climatic conditions similar to those of extant subtropical rainforests. One of the anurans is a helmeted neobatrachian, which is represented by articulated remains and represents a new species that can be assigned to the extant genus Calyptocephalella on the basis of both cranial and postcranial traits. Calyptocephalella pichileufensis, gen. et sp. nov., indicates that, despite the relatively conservative skeletal anatomy of the genus, Calyptocephalella has not always been associated with the temperate austral forests that it inhabits today. The new species also provides evidence of a biotic link with Australia, which has been proposed on the basis of other faunal and floral records, as well as on the paleogeographic history of Patagonia during the mid-Cretaceous-Eocene interval. We also discuss the significance of neobatrachian cranial features that might reflect hyperossification. © 2011 by the Society of Vertebrate Paleontology.
format	JOUR
author	Gomez, R.O. Baez, A.M. Muzzopappa, P.
author_facet	Gomez, R.O. Baez, A.M. Muzzopappa, P.
author_sort	Gomez, R.O.
title	A new helmeted frog (Anura: Calyptocephalellidae) from an Eocene subtropical lake in northwestern Patagonia, Argentina
title_short	A new helmeted frog (Anura: Calyptocephalellidae) from an Eocene subtropical lake in northwestern Patagonia, Argentina
title_full	A new helmeted frog (Anura: Calyptocephalellidae) from an Eocene subtropical lake in northwestern Patagonia, Argentina
title_fullStr	A new helmeted frog (Anura: Calyptocephalellidae) from an Eocene subtropical lake in northwestern Patagonia, Argentina
title_full_unstemmed	A new helmeted frog (Anura: Calyptocephalellidae) from an Eocene subtropical lake in northwestern Patagonia, Argentina
title_sort	new helmeted frog (anura: calyptocephalellidae) from an eocene subtropical lake in northwestern patagonia, argentina
url	http://hdl.handle.net/20.500.12110/paper_02724634_v31_n1_p50_Gomez
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A new helmeted frog (Anura: Calyptocephalellidae) from an Eocene subtropical lake in northwestern Patagonia, Argentina

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