Vol. 6] Merriam: Virgin Valley and Thousand Creek. 277 



terior lobe is largely broken away, but enough of it is present 

 to indicate that it was large, and the inner face seems not to 

 have turned very far outward and backward away from the 

 plane of the inner side of the anterior portion of the tooth. 



Measurements 



M 2 , anteroposterior diameter measured on outer side 19.2 mm. 



M", transverse diameter measured at base across protocone 18.1 



M 3 , anteroposterior diameter along metaconid and entoconid cres- 

 cents, measured on inner side 18.8 



M 3 , transverse diameter measured across protoconid and metaconid 



crescents 11.4 



CAMELIDAB 



Numerous fragmentary remains of representatives of the 

 Camelidae were found in the exposures at Thousand Creek, and 

 somewhat less abundantly at Virgin Valley. Unfortunately the 

 material that has been obtained consists only of scattered bones 

 with small fragments of the skull and a few teeth. The foot- 

 bones represented show a considerable range in size, and indicate 

 the presence of at least two forms at Thousand Creek, and two at 

 Virgin Valley. One of the species at Thousand Creek included 



Figs. 50a and 50b. Camel, compare Camelus americanus Wortman. 

 M 3 . No. 12765, X%. Thousand Creek Beds, Thousand Creek, Nevada. 

 Fig. 50a, lateral view; fig. 50b, occlusal view. 



Fig. 51. Cameloid. Premaxillary and portion of maxillary. No. 

 19416, X a /4. Thousand Creek Beds, Thousand Creek, Nevada. 



