Specimen Images: (CalPhotos: Usage Guideline)

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Retrieve the UCMP Specimen Record (UCMP database)

Source of Image(s): © 2003 University of California Museum of Paleontology

Original Diagnosis and Related Text:

Source of Text:

Macdonald, J. R. 1956. A new Clarendonian mammalian fauna from the Truckee formaton of 
western Nevada. Journal of Paleontology, 30(1):186-202.

Shotwell, J. A. 1958. Evolution and biogeography of the aplodontid and mylagualid rodents. 
Evolution, 12: 451-484.