Small Vertebrates of the Bidahochi Formation, White Cone, Northeastern Arizona

Persistent Link:
Small Vertebrates of the Bidahochi Formation, White Cone, Northeastern Arizona
Baskin, Jon Alan
Issue Date:
The University of Arizona.
Copyright © is held by the author. Digital access to this material is made possible by the Antevs Library, Department of Geosciences, and the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author or the department.
Collection Information:
This item is part of the Geosciences Theses collection. It was digitized from a physical copy provided by the Antevs Library, Department of Geosciences, University of Arizona. For more information about items in this collection, please email the Antevs Library,
Two taxa of amphibians, five taxa of reptiles, and eighteen taxa of mammals were collected by screen-washing sediments from the upper Bidahochi Formation at White Cone peak, northeastern Arizona. Five new species of mammals were recovered. They include Perognathoides bidahochiensis (Heteromyidae), Bensonomys yazhi (Cricetidae), Bensonomys bradyi (Cricetidae), Paronychomys alticuspis (Cricetidae), and Martes (Plionictis) repenningi (Mustelidae). Bensonomys yazhi and Bensonomys bradyi are close to the stem of Central and South Americal hesperomyine radiation. The radiation began in the southwest United States and Mexico during the Hemphillian. The middle member of the Bidahochi Formation is dated at 6.7 m. y. by a basalt from Roberts Mesa. The paleomagnetic data and the White Cone local fauna support this middle Hemphillian date.
text; Thesis-Reproduction (electronic)
Amphibia; Arizona; Bensonomys; Bidahochi Formation; Carnivora; Cenozoic; Chordata; Cricetidae; Eutheria; faunal studies; Hemphillian; Heteromyidae; Mammalia; Martes; Miocene; Mustclidae; Myomorpha; Neogene; new taxa; northeast; occurrence; paleontology; Perognathoides; Pliocene; radiation; Reptilia; Rodentia; Tertiary; Tetrapoda; Theria; United States; Vertebrata; White Cone; Paleontology -- Arizona -- White Cone; Vertebrates -- Arizona -- White Cone; Vertebrates, Fossil
Degree Name:
Degree Level:
Degree Program:
Graduate College; Geosciences
Degree Grantor:
University of Arizona
Committee Chair:
Lindsay, Everett H.

Full metadata record

DC FieldValue Language
All Items in UA Campus Repository are protected by copyright, with all rights reserved, unless otherwise indicated.