A new genus of dipnoiformes from the Cretaceous of Brazil
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
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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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) |
instacron_str |
ABC |
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 |
_version_ |
1754302858068492288 |