Artículo
A new Early Permian bivalve fauna from the Río Genoa Formation, Patagonia, Chubut Province, Argentina
Fecha de publicación:
09/2011
Editorial:
Taylor & Francis
Revista:
Alcheringa
ISSN:
0311-5518
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Fourteen Bivalvia species are described from the Lower Permian Río Genoa Formation, exposed in the southern Tepuel-Genoa Basin (Chubut Province, Argentina), of which one, Fletcheripecten genoensis, is new. The studied specimens are well preserved, retaining fine details of the ornament and shell morphology. Palaeotaxodonta is represented by two species of Nuculopsis and four species of Phestia; Pteriomorphia by five species in five genera; and Heteroconchia by three informal species. Most of the species recorded also occur in the northern part of Tepuel- Genoa Basin and allow demarcation of new and distinct marine intervals in the Río Genoa Formation, which was classically interpreted to represent continental deposits. The bivalve fauna confirms a Cisuralian (Early Permian) age for the Río Genoa Formation and offers potential for improved regional and global correlations.
Palabras clave:
Argentina
,
Biostratigraphy
,
Bivalvia
,
Cisuralian
,
Marine Fauna
,
Patagonia
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Pagani, María Alejandra; Ferrari, Silvia Mariel; A new Early Permian bivalve fauna from the Río Genoa Formation, Patagonia, Chubut Province, Argentina; Taylor & Francis; Alcheringa; 35; 3; 9-2011; 355-376
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