Abstract

The rodents collected in the 1920's by the Marshall Field Expedition for the Field Museum of Natural History, Chicago, are systematically reviewed and placed within the stratigraphic framework established at the time of collection. One new genus (Proeuryzygomys) and three new species (Abracoma intermedias, Proeuryzygomys diminutiva, and Cayiodon (Lelongia) catamarcensis) are proposed. Two distinct faunas are recognized corresponding to the Huayquerian and Montehermosan Land Mammal Ages respectively. Several computer programs were developed to aid in character analysis.

LLU Discipline

Geology

Department

Geology

School

Graduate School

First Advisor

Leonard R. Brand

Second Advisor

Lanny H. Fisk

Third Advisor

H. Paul Buchheim

Degree Name

Master of Science (MS)

Degree Level

M.S.

Year Degree Awarded

1984

Date (Title Page)

12-1984

Language

English

Library of Congress/MESH Subject Headings

Rodents; Fossil; Paleontology -- Tertiary -- Argentina.

Type

Thesis

Page Count

xii; 180

Digital Format

PDF

Digital Publisher

Loma Linda University Libraries

Usage Rights

This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights.

Collection

Loma Linda University Electronic Theses and Dissertations

Collection Website

http://scholarsrepository.llu.edu/etd/

Repository

Loma Linda University. Del E. Webb Memorial Library. University Archives

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