34 University of California Publications in Geology [Vol. 13 



A well preserved molariform tooth was found in a mixed collection 

 of fragmentary pinniped and cetacean remains in the Geological De- 

 partment of Stanford University. These specimens were also obtained 

 in the Temblor beds near Bakersfield. There are several imperfect 

 teeth, collected by Charles Morrice, in the collection from the Califor- 

 nia Academy of Sciences which correspond fairly well with this tooth 

 in size. This tooth is single rooted and may possibly be either the 

 second or third upper molar on the left side. It corresponds closely . 

 with similar teeth in immature skulls of Callotaria and Eumetopias. 

 The posterior cusp is better developed than the anterior cusp (fig. 3) ; 

 in Callotaria the reverse is usually true. The cingulum is well defined, 

 though incomplete externally. On the internal face of the cingulum 

 (fig. 4) one well defined cusp occurs. Similar cusps can be observed 

 on the premolars of Callotaria. The main haplodont crown (fig. 5) 

 is rounded and rather blunt, the anterior and posterior margins form- 

 ing a sharp cutting edge. 



A dozen or more small teeth (figs. 8a, 8b) were found with the 

 other AUodes)iu(s remains. These may possibly be the milk teeth of 

 some pinniped, probably Allodesmus. They resemble the adult teeth 

 very closely in contour and in relative proportions, and are likewise 

 curved backward at the tip. 



Figs. 15a, 15b. Otarid, gen. and sp.? Canine, no. 23993, U. C. Pale, coll., 

 X %. Fig. 15a, internal view of canine; fig. 156, external view of same. Vaqueros 

 formation near Stage Station on Bakersfield Quadrangle, California. 



Measurements of Molar 



Anteroposterior diameter of tooth ... 

 Greatest height of crown of tooth .... 

 Greatest width of tooth at cingulum 



7. mm. 

 5. mm. 

 5.5 mm. 



