A new genus of dipnoiformes from the Cretaceous of Brazil

Detalhes bibliográficos
Autor(a) principal: Toledo,Carlos E.V.
Data de Publicação: 2011
Outros Autores: Sousa,Eliane P. de, Medeiros,Manuel A.A., Bertini,Reinaldo J.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Anais da Academia Brasileira de Ciências (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000400006
Resumo: The Alcântara Formation, an important stratigraphic unit from the early Cenomanian of Brazil, was deposited under transitional (estuarine) conditions, and its fossil record includes fragmentary remains of plants, fishes, crocodylomorphs, pterosaurs and dinosaurs, with a noteworthy diversity of dipnoiformes tooth plates. The dipnoiformes material reported here comprises a new taxon, Equinoxiodus alcantarensis, gen. et sp. nov. Most of the identified morphotypes of continental vertebrates collected in the Alcântara Formation are similar to chronocorrelative faunas from Northern Africa, but this new genus of Dipnoiformes indicates some degree of paleogeographic isolation and endemism. This was probably caused by the widening of the equatorial Atlantic Ocean during the early Cenomanian, which may have selectively affected some species.
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spelling A new genus of dipnoiformes from the Cretaceous of BrazilDipnoiformesneoceratodontidsEquinoxiodus alcantarensis gen. et sp. nov.CretaceousThe Alcântara Formation, an important stratigraphic unit from the early Cenomanian of Brazil, was deposited under transitional (estuarine) conditions, and its fossil record includes fragmentary remains of plants, fishes, crocodylomorphs, pterosaurs and dinosaurs, with a noteworthy diversity of dipnoiformes tooth plates. The dipnoiformes material reported here comprises a new taxon, Equinoxiodus alcantarensis, gen. et sp. nov. Most of the identified morphotypes of continental vertebrates collected in the Alcântara Formation are similar to chronocorrelative faunas from Northern Africa, but this new genus of Dipnoiformes indicates some degree of paleogeographic isolation and endemism. This was probably caused by the widening of the equatorial Atlantic Ocean during the early Cenomanian, which may have selectively affected some species.Academia Brasileira de Ciências2011-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000400006Anais da Academia Brasileira de Ciências v.83 n.4 2011reponame:Anais da Academia Brasileira de Ciências (Online)instname:Academia Brasileira de Ciências (ABC)instacron:ABC10.1590/S0001-37652011000400006info:eu-repo/semantics/openAccessToledo,Carlos E.V.Sousa,Eliane P. deMedeiros,Manuel A.A.Bertini,Reinaldo J.eng2011-11-29T00:00:00Zoai:scielo:S0001-37652011000400006Revistahttp://www.scielo.br/aabchttps://old.scielo.br/oai/scielo-oai.php||aabc@abc.org.br1678-26900001-3765opendoar:2011-11-29T00:00Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)false
dc.title.none.fl_str_mv A new genus of dipnoiformes from the Cretaceous of Brazil
title A new genus of dipnoiformes from the Cretaceous of Brazil
spellingShingle A new genus of dipnoiformes from the Cretaceous of Brazil
Toledo,Carlos E.V.
Dipnoiformes
neoceratodontids
Equinoxiodus alcantarensis gen. et sp. nov.
Cretaceous
title_short A new genus of dipnoiformes from the Cretaceous of Brazil
title_full A new genus of dipnoiformes from the Cretaceous of Brazil
title_fullStr A new genus of dipnoiformes from the Cretaceous of Brazil
title_full_unstemmed A new genus of dipnoiformes from the Cretaceous of Brazil
title_sort A new genus of dipnoiformes from the Cretaceous of Brazil
author Toledo,Carlos E.V.
author_facet Toledo,Carlos E.V.
Sousa,Eliane P. de
Medeiros,Manuel A.A.
Bertini,Reinaldo J.
author_role author
author2 Sousa,Eliane P. de
Medeiros,Manuel A.A.
Bertini,Reinaldo J.
author2_role author
author
author
dc.contributor.author.fl_str_mv Toledo,Carlos E.V.
Sousa,Eliane P. de
Medeiros,Manuel A.A.
Bertini,Reinaldo J.
dc.subject.por.fl_str_mv Dipnoiformes
neoceratodontids
Equinoxiodus alcantarensis gen. et sp. nov.
Cretaceous
topic Dipnoiformes
neoceratodontids
Equinoxiodus alcantarensis gen. et sp. nov.
Cretaceous
description The Alcântara Formation, an important stratigraphic unit from the early Cenomanian of Brazil, was deposited under transitional (estuarine) conditions, and its fossil record includes fragmentary remains of plants, fishes, crocodylomorphs, pterosaurs and dinosaurs, with a noteworthy diversity of dipnoiformes tooth plates. The dipnoiformes material reported here comprises a new taxon, Equinoxiodus alcantarensis, gen. et sp. nov. Most of the identified morphotypes of continental vertebrates collected in the Alcântara Formation are similar to chronocorrelative faunas from Northern Africa, but this new genus of Dipnoiformes indicates some degree of paleogeographic isolation and endemism. This was probably caused by the widening of the equatorial Atlantic Ocean during the early Cenomanian, which may have selectively affected some species.
publishDate 2011
dc.date.none.fl_str_mv 2011-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000400006
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000400006
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0001-37652011000400006
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Academia Brasileira de Ciências
publisher.none.fl_str_mv Academia Brasileira de Ciências
dc.source.none.fl_str_mv Anais da Academia Brasileira de Ciências v.83 n.4 2011
reponame:Anais da Academia Brasileira de Ciências (Online)
instname:Academia Brasileira de Ciências (ABC)
instacron:ABC
instname_str Academia Brasileira de Ciências (ABC)
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institution ABC
reponame_str Anais da Academia Brasileira de Ciências (Online)
collection Anais da Academia Brasileira de Ciências (Online)
repository.name.fl_str_mv Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)
repository.mail.fl_str_mv ||aabc@abc.org.br
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