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Diversity and paleoenvironmental implications of an elasmobranch assemblage from the Oligocene-Miocene boundary of Ecuador.
Carrillo-Briceño, Jorge D; Villafaña, Jaime A; De Gracia, Carlos; Flores-Alcívar, F Fernando; Kindlimann, René; Abella, Juan.
Afiliação
  • Carrillo-Briceño JD; Palaeontological Institute and Museum, University of Zurich, Zurich, Switzerland.
  • Villafaña JA; University of Vienna, Department of Paleontology, Vienna, Austria.
  • De Gracia C; Centro de Investigación en Recursos Naturales y Sustentabilidad, Universidad Bernardo O'Higgins, Santiago, Chile.
  • Flores-Alcívar FF; University of Vienna, Department of Paleontology, Vienna, Austria.
  • Kindlimann R; Center of Tropical Paleoecology and Archaeology, Smithsonian Tropical Research Institute, Panama, Panama.
  • Abella J; Universidad Estatal de la Peninsula de Santa Elena, La Libertad, Santa Elena, Ecuador.
PeerJ ; 8: e9051, 2020.
Article em En | MEDLINE | ID: mdl-32391203
The occurrence and diversity of elasmobranchs from the Oligocene-Miocene boundary from Tropical America is poorly known in comparison with the paleodiversity from younger Neogene intervals of the region. Here we describe a new elasmobranch assemblage from the rich fossil site of Montañita-Olón (Dos Bocas Formation, Santa Elena, Ecuador), where other vertebrates have already been described: for example, sea turtles and cetaceans. We report a total of 27 elasmobranch taxa, 19 of which are new fossil records for Ecuador, 10 new records for the Central Eastern Pacific and four new records for South America. Additionally, in order to reconstruct the environment where these marine remains were deposited, we performed abundance, paleobathymetric and habitat preference analyses, concluding that they were likely deposited in an outer neritic (open shelf) environment. The study of Oligocene and early Miocene marine elasmobranchs faunas in Tropical America is key to addressing the issues in the evolutionary history of this group.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE País/Região como assunto: America do sul / Ecuador Idioma: En Revista: PeerJ Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Suíça País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE País/Região como assunto: America do sul / Ecuador Idioma: En Revista: PeerJ Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Suíça País de publicação: Estados Unidos