TY  - BOOK
AU  - Emry Robert J.
AU  - Thorington,Richard W.
TI  - Descriptive and comparative osteology of the oldest fossil squirrel, Protosciurus (Rodentia Sciuridae)
PY  - 1982///
CY  - Washington
PB  - Smithsonian Institution Press
KW  - Protosciurus
N1  - Includes bibliographical references
ER  -