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Lower Eocene Large Ostreids from the Viento Formation; Stratigraphic and Paleoecologic Implications for the La Popa Basin, Nuevo León, Mexico

By
María del Carmen Perrilliat
María del Carmen Perrilliat
Instituto de Geología, Universidad Nacional Autónoma de México, Mexico City
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Francisco J. Vega
Francisco J. Vega
Instituto de Geología, Universidad Nacional Autónoma de México, Mexico City
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Published:
January 01, 2003

Abstract

Three species of lower Eocene ostreids are reported from the Viento Formation of the La Popa Basin, Nuevo León, northeastern Mexico. Two of them are described as new: Ostrea (Turkostrea) ventosa new species, and Ostrea (Turkostrea) ovata new species. Ostrea sp. is also reported associated with the new forms. The large size of these species, in contrast with their small relatives from equivalent depositional environments in the underlying Adjuntas Formation, suggests that paleoclimate played an important role in their size development. These ostreids are the youngest fossils reported from the La Popa Basin, as the Viento Formation has remained undated prior to this contribution. The age suggested for the Viento Formation corresponds to the early Eocene, probably the upper part of the Ypresian.

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AAPG Memoir

The Circum-Gulf of Mexico and the Caribbean: Hydrocarbon Habitats, Basin Formation and Plate Tectonics

Claudio Bartolini
Claudio Bartolini
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Richard T. Buffler
Richard T. Buffler
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Jon F. Blickwede
Jon F. Blickwede
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American Association of Petroleum Geologists
Volume
79
ISBN electronic:
9781629810546
Publication date:
January 01, 2003

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