YPMPU
No 20129

Date 11-3-49

F- II A

Name *Phenacodus*

Horizon*Gray Bull, Willwood, Wasatchian*

Locality*T53 N, R. 97 W, Bighorn Co, Wyo.*

Collector*A. Silberling*

Description*R. m2-3, L. p4-m3, L. M2-3; R. m2-3; R. p4-m1, L. M1-2; unassociate*

Princeton Department of Geology