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A new species of beaver (Rodentia, Castoridae) from the Middle Oligocene (Orellan) of Nebraska

Published online by Cambridge University Press:  14 July 2015

William W. Korth
William W. Korth*
Affiliation:
Research Associate, University of Nebraska State Museum, W436 Nebraska Hall, Lincoln 68588
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Abstract

Agnotocastor readingi n. sp., from the Orellan of Nebraska, is intermediate in size between the Chadronian A. galushai Emry from Wyoming and the Orellan A. coloradensis Wilson from Colorado. It differs slightly in dental and mandibular morphology from these latter species and cannot be transitional between them. The simplification of the dentition in A. readingi may indicate a position ancestral to the Whitneyan A. praetereadens Stirton from South Dakota.

Type
Research Article
Information
Journal of Paleontology , Volume 62 , Issue 6 , November 1988 , pp. 965 - 967
Copyright
Copyright © The Paleontological Society 

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