448 



Thorpe — Some Tertiary Camivora in 



Maclicerodus niobrarensis, sp. nov. 



(Fig. 13.) 



Holotype, Cat. No. 12829, Y. P. M. Upper Miocene (Valentine beds), 

 Niobrara Eiver, Cherry Co., Nebraska. 



The portion of a skull, anterior to P 3 , collected in 1873, 

 is tentatively referred to Maclicerodus, in spite of the 

 fact that no undoubted specimen of this genus has been 

 hitherto found in North America. This specimen does 

 not by any means dispel doubt as to the presence of this 



Fig. 13. 



12829 TYPE Y- P- M. 



Fig. 13. — Maclicerodus niobrarensis, sp. nov. Holotype. X 3/4. A, left 

 lateral view of part of maxillary and premaxillary ; B, palatal view of same. 



genus in the New World, but it does show that there were 

 forms present here which were more nearly allied to 

 Maclicerodus than to any other genus of felids. 



One of the outstanding and diagnostic characters of the 

 specimen is seen in a cross-section of the canine, this 

 tooth being very much compressed, and having an antero- 

 posterior diameter of 21.5 mm. and a maximum trans- 

 verse diameter of 8.8 mm., measured at the alveolar 



