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A new decapod fauna from the Miocene Tuxpan Formation, eastern Mexico

Published online by Cambridge University Press:  20 May 2016

Francisco J. Vega
Affiliation:
Instituto de Geología, UN AM, Ciudad Universitaria, Coyoacán, Mexico, D. F., 04510, Mexico
Rodney M. Feldmann
Affiliation:
Department of Geology, Kent State University, Kent, Ohio, 44242
José Luis Villalobos-Hiriart
Affiliation:
Instituto de Biología, UNAM, Ciudad Universitaria, Coyoacán, Mexico, D. F. 04510, Mexico
Raúl Gío-Argíez
Affiliation:
Instituto de Ciencias del Mar y Limnología, UNAM, Ciudad Universitaria, Coyoacán, Mexico, D. F. 04510, Mexico

Abstract

The first formal report of Tertiary portunid crabs for Mexico is based on two new species, Portunus atecuicitli and Necronectes tajinensis, from the middle Miocene beds of the Tuxpan Formation in Veracruz, east-central Mexico. Associated crustacean remains include fragments of calappid fingers, calappid carapace fragments possibly assignable to Matuta Fabricius, and callianassid hands. Low tolerance to osmotic variations of recent species of Portunus confirms paleoenvironmental interpretations for shallow, euryhaline, tropical waters during deposition of the Tuxpan Formation.

Type
Research Article
Copyright
Copyright © The Paleontological Society 

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