382 



University of California Puhlications in Geology 



[Vol. 12 



Comparative Measurements 



Antilocapra 

 Univ. Calif. 

 Coll. Vert. 

 Pal. no. 8929 



Anteroposterior diameter 

 Transverse diameter 



Upper Molar 

 No. 23400 



15 mm. 



. 10 



15.5 mm. 



11.5 



MEEYCODUS?, Sp., OR ILINGICEEOSI, sp. 



Material. — Portions of a small carpus, metacarpus, and radius, Univ. Calif. 

 Coll. Vert. Pal. no. 23432 (figs. 102a, 102b), Univ. Calif, loc. 3274. 



Discussion. — The carpal bones, and portions of metacarpus and 

 radius, Univ. Calif. Coll. Vert. Pal. no. 23432 (figs. 102a, 102&) belong 



Figs. 102a, 102&. Antilocapra?, n. sp. Incomplete carpus, no. 23432, X 1. 

 Fig. 102a, lateral view; fig. 102b, front view. Eden beds, California. 



to a smaller animal than the cervid-like tooth and astragalus listed 

 above, and may represent a small species near Merycodus, or some 

 antelope form such as Ilingoceros. 



The collection consists of some two hundred non-associated and 

 associated cheek teeth showing a considerable range of pattern and 

 size, a large number of incisors, and certain limb elements. 



Individual variation and the stage of wear where there is scarcity 

 of material often erroneously suggests multiplicity of form. Many 

 cross-sections have been made in the case of the present teeth, and 

 they have assisted in determining to what extent the characters noted 

 in these specimens have been due to age. As none of the upper teeth 

 occurred definitely associated with the lower teeth, and as teeth and 



102a 



102b 



Equidae 



