History of two lineages: Comparative analysis of the fossil record in Amiiformes and Pycnodontiformes (Osteischtyes, Actinopterygii)

Amiiformes and pycnodontiformes are two orders of neopterygian fishes that were broadly distributed, and frequently appeared together, during the Mesozoic. Comparison of their fossil record reveals both common traits and significant differences. They both appeared in the Western Tethys and reached m...

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Authors: Poyato Ariza, Francisco José; Martín Abad, Hugo Javier
Format: Article
Publication date:2013
Country:España
Institution:Universidad Autónoma de Madrid
Repository:Biblos-e Archivo. Repositorio Institucional de la UAM
Language:English
OAI Identifier:oai:repositorio.uam.es:10486/710030
Online Access:http://hdl.handle.net/10486/710030
Access Level:Open access
Keyword:Disparity
distribution
diversity
Mesozoic
Teleosti
Biología y Biomedicina / Biología
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author Poyato Ariza, Francisco José
author2 Martín Abad, Hugo Javier
author2_role author
author_browse Martín Abad, Hugo Javier
Poyato Ariza, Francisco José
author_facet Poyato Ariza, Francisco José
Martín Abad, Hugo Javier
author_role author
collection Biblos-e Archivo. Repositorio Institucional de la UAM
description Amiiformes and pycnodontiformes are two orders of neopterygian fishes that were broadly distributed, and frequently appeared together, during the Mesozoic. Comparison of their fossil record reveals both common traits and significant differences. They both appeared in the Western Tethys and reached maximum diversity during the Cretaceous. The differences in their evolutionary history involve dissimilar patterns of diversity and disparity; pycnodonts are more diversified taxonomically and present larger ecomorphological disparity. This implies that they used different strategies to compete with teleosts, which were unable to displace them from their specialized niches for more than 100 ka. The reasons why this did not happen sooner are difficult to approach, and may include radical environmental changes (i.e., marine transgressions, opening of the Atlantic, closing of the Tethys and opening of the Mediterranean). It is nonetheless clear that the evolutionary novelties of the Teleostei per se were not enough to grant them advantage in the competition for the ichthyofagous and durophagous niches at least during the Late Triassic, the whole Jurassic and the Early Cretaceous
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language eng
network_acronym_str ES
network_name_str España
oai_identifier_str oai:repositorio.uam.es:10486/710030
publishDate 2013
publishDateSort 2013
publisher Spanish Society of Palaeontology
publisherStr Spanish Society of Palaeontology
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
spelling History of two lineages: Comparative analysis of the fossil record in Amiiformes and Pycnodontiformes (Osteischtyes, Actinopterygii) Poyato Ariza, Francisco José Martín Abad, Hugo Javier Disparity distribution diversity Mesozoic Teleosti Biología y Biomedicina / Biología Amiiformes and pycnodontiformes are two orders of neopterygian fishes that were broadly distributed, and frequently appeared together, during the Mesozoic. Comparison of their fossil record reveals both common traits and significant differences. They both appeared in the Western Tethys and reached maximum diversity during the Cretaceous. The differences in their evolutionary history involve dissimilar patterns of diversity and disparity; pycnodonts are more diversified taxonomically and present larger ecomorphological disparity. This implies that they used different strategies to compete with teleosts, which were unable to displace them from their specialized niches for more than 100 ka. The reasons why this did not happen sooner are difficult to approach, and may include radical environmental changes (i.e., marine transgressions, opening of the Atlantic, closing of the Tethys and opening of the Mediterranean). It is nonetheless clear that the evolutionary novelties of the Teleostei per se were not enough to grant them advantage in the competition for the ichthyofagous and durophagous niches at least during the Late Triassic, the whole Jurassic and the Early Cretaceous Spanish Society of Palaeontology http://hdl.handle.net/10486/710030
spellingShingle History of two lineages: Comparative analysis of the fossil record in Amiiformes and Pycnodontiformes (Osteischtyes, Actinopterygii)
Poyato Ariza, Francisco José
Disparity
distribution
diversity
Mesozoic
Teleosti
Biología y Biomedicina / Biología
title History of two lineages: Comparative analysis of the fossil record in Amiiformes and Pycnodontiformes (Osteischtyes, Actinopterygii)
title_full History of two lineages: Comparative analysis of the fossil record in Amiiformes and Pycnodontiformes (Osteischtyes, Actinopterygii)
title_fullStr History of two lineages: Comparative analysis of the fossil record in Amiiformes and Pycnodontiformes (Osteischtyes, Actinopterygii)
title_full_unstemmed History of two lineages: Comparative analysis of the fossil record in Amiiformes and Pycnodontiformes (Osteischtyes, Actinopterygii)
title_short History of two lineages: Comparative analysis of the fossil record in Amiiformes and Pycnodontiformes (Osteischtyes, Actinopterygii)
title_sort History of two lineages: Comparative analysis of the fossil record in Amiiformes and Pycnodontiformes (Osteischtyes, Actinopterygii)
topic Disparity
distribution
diversity
Mesozoic
Teleosti
Biología y Biomedicina / Biología
topic_facet Disparity
distribution
diversity
Mesozoic
Teleosti
Biología y Biomedicina / Biología
url http://hdl.handle.net/10486/710030