The Alligatoroidea of Argentina: an update of its fossil record

The fossil record of Alligatoroidea in Argentina is mainly represented by Caimaninae alligatorids. This lineage recorded two important moments in its natural history, one at the beginning of the Paleogene (Late Paleocene–Middle Eocene) and the other in the Neogene (Late Miocene). The most ancient re...

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Detalles Bibliográficos
Autores principales: Bona, Paula, Barrios, Francisco
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Paleontología
Crocodylia
Alligatoroids
Cenozoic
South America
Argentina
Aligatoroideos
Cenozoico
América del Sur
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/120410
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-120410
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Paleontología
Crocodylia
Alligatoroids
Cenozoic
South America
Argentina
Aligatoroideos
Cenozoico
América del Sur
spellingShingle Paleontología
Crocodylia
Alligatoroids
Cenozoic
South America
Argentina
Aligatoroideos
Cenozoico
América del Sur
Bona, Paula
Barrios, Francisco
The Alligatoroidea of Argentina: an update of its fossil record
topic_facet Paleontología
Crocodylia
Alligatoroids
Cenozoic
South America
Argentina
Aligatoroideos
Cenozoico
América del Sur
description The fossil record of Alligatoroidea in Argentina is mainly represented by Caimaninae alligatorids. This lineage recorded two important moments in its natural history, one at the beginning of the Paleogene (Late Paleocene–Middle Eocene) and the other in the Neogene (Late Miocene). The most ancient record of alligatoroids in South America comes from the Early Paleocene of Patagonia. It includes basal forms of caimanines such as Necrosuchus ionensis, Eocaiman palaeocenicus, Eocaiman cavernensis, and probably a new species of alligatoroid, which provide key morphological information on the evolutionary and biogeographic history of these crocodylians. Another important moment of the evolutionary history of caimanines is the diversification of the lineage observed during the Miocene. Although there is some isolated cranial material of caimanines from the Late Miocene of northwestern Argentina, the most abundant and diverse fossil Miocene material comes from the northeast, from a level informally called “Conglomerado Osífero”. Two genera of caimanines are known from this stratigraphic level (Caiman and Mourasuchus) with at least five valid species. Here we present an update of the knowledge of Cenozoic alligatorids of Argentina, as a tribute to Zulma Gasparini for her invaluable contribution to the understanding of the crocodilian evolution in South America.
format Articulo
Articulo
author Bona, Paula
Barrios, Francisco
author_facet Bona, Paula
Barrios, Francisco
author_sort Bona, Paula
title The Alligatoroidea of Argentina: an update of its fossil record
title_short The Alligatoroidea of Argentina: an update of its fossil record
title_full The Alligatoroidea of Argentina: an update of its fossil record
title_fullStr The Alligatoroidea of Argentina: an update of its fossil record
title_full_unstemmed The Alligatoroidea of Argentina: an update of its fossil record
title_sort alligatoroidea of argentina: an update of its fossil record
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/120410
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