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Proneofiber, a New Genus of Vole (Cricetidae: Rodentia) from the Pleistocene Seymour Formation of Texas, and its Evolutionary and Stratigraphic Significance

Published online by Cambridge University Press:  20 January 2017

Claude W. Hibbard  and
Walter W. Dalquest
Claude W. Hibbard
Affiliation:
Museum of Paleontology, The University of Michigan, Ann Arbor, Michigan 48104 USA
Walter W. Dalquest
Affiliation:
Department of Biology, Midwestern University, Wichita Falls, Texas 76308 USA
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Abstract

A new genus and species of a microtine rodent, Proneofiber guildayi, is named on the basis of rooted teeth with cement from the warm Gilliland local fauna, Seymour Formation of Pleistocene age, Knox County, Texas. Proneofiber guildayi is considered to be ancestral to Neofiber, the round-tailed water rat, now living in the extreme southeastern United States. The presence of Pleistocene faunas prior to the first continental glaciation and the existence of three Pearlette-like volcanic ashes in the Plains Region suggest a revision of the age assignment of Pleistocene deposits from the nonglaciated region.

Type
Original Articles
Information
Quaternary Research , Volume 3 , Issue 2 , August 1973 , pp. 269 - 274
Copyright
University of Washington

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