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Osteology and Systematics of the fossil catfishes (genus Ictalurus) of central Mexico

Published online by Cambridge University Press:  14 July 2015

Michael Leonard Smith
Michael Leonard Smith*
Affiliation:
Division of Biological Sciences and Museum of Zoology, University of Michigan, Ann Arbor 48109
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Abstract

An extinct ictalurid catfish, Ictalurus spodius n. sp., is described from the Pleistocene of Central Mexico. It shares derived osteological characters with the subgenus Ictalurus and the I. punctatus species group. The new species is known from middle Pleistocene fluvial and lacustrine sediments and was abundant until near the end of the Pleistocene when it was replaced by a closely related species, I. dugesi. The latter is known from late and post-Pleistocene lake-bottom deposits and is widespread in Central Mexico today.

Type
Research Article
Information
Journal of Paleontology , Volume 61 , Issue 2 , March 1987 , pp. 380 - 387
Copyright
Copyright © The Paleontological Society 

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