Middle Eocene Cypraeoideans from the San Juan Formation, Chiapas, southern Mexico
Vol. 20 No. 1 (2003), Regular Papers
Vol. 20 No. 1 (2003)

Middle Eocene Cypraeoideans from the San Juan Formation, Chiapas, southern Mexico

Regular Papers
Published 2018-06-08
María del Carmen Perrilliat
Instituto de Geología, UNAM, Ciudad Universitaria, 04510, México, D. F., México.
Javier Avendaño
Instituto de Historia Natural del Estado de Chiapas, Calzada de los Hombres Ilustres S/N, Tuxtla Gutiérrez, Chiapas, 29000, México.
Francisco J. Vega
Instituto de Geología, UNAM, Ciudad Universitaria, 04510, México, D. F., México.
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Keywords

Cypraeoidean gastropods, middle Eocene, Chiapas.

How to Cite

Perrilliat, M. del C., Avendaño, J., & Vega, F. J. (2018). Middle Eocene Cypraeoideans from the San Juan Formation, Chiapas, southern Mexico. Revista Mexicana De Ciencias Geológicas, 20(1), 41–51. Retrieved from https://rmcg.unam.mx/index.php/rmcg/article/view/954
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Abstract

Four cypraeoid species one new, and six subspecies, two new from the middle Eocene San Juan Formation in central Chiapas, southern Mexico are described and illustrated. The new species Macrocypraea veintensis sp.nov., and two new subspecies Bernaya (Bernaya ) media chiapasensis subsp. nov., and Cypraeorbis alabamensis mexicana subsp. nov. are established from well preserved specimens. Based on lithology and fossil content, a middle Eocene age for the San Juan Formation is confirmed.

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