Artículo
First report of Devonian bactritids (Cephalopoda) from South America: Paleobiogeographic and biostratigraphic implications
Fecha de publicación:
05/2017
Editorial:
Paleontological Society
Revista:
Journal of Paleontology
ISSN:
0022-3360
e-ISSN:
1937-2337
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Devonian bactritids are described for the first time from South America. They come from siliciclastic rocks of the Talacasto Formation in the Precordillera Basin, west-central Argentina. The host strata span the Lochkovian - Emsian and contain other non-ammonoid cephalopods as well, thus refuting the alleged virtual absence of cephalopods in circumpolar Devonian basins from southwestern Gondwana (the Malvinokaffric Realm). We report Bactrites gracilis and Devonobactrites? sp., whose wide distribution contrasts with the endemic paleobiogeographic signature of some other taxonomic groups in these basins. Furthermore, new Lochkovian and Pragian records of Bactrites sp. provide new insights into the earliest bactritid records worldwide.
Palabras clave:
Cephalopods
,
Bactritoids
,
Devonian
,
Malvinokaffric
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CICTERRA)
Articulos de CENTRO DE INVEST.EN CS.DE LA TIERRA
Articulos de CENTRO DE INVEST.EN CS.DE LA TIERRA
Citación
Cichowolski, Marcela; Rustán, Juan José; First report of Devonian bactritids (Cephalopoda) from South America: Paleobiogeographic and biostratigraphic implications; Paleontological Society; Journal of Paleontology; 91; 3; 5-2017; 417-433
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