PALEOCENE MMIMALS OF CENTRAL UTAH — GAZIN 



25 



"metaconule" such as usually is present in M. turgidus. The tritocone 

 of P* in Dracoclaenus griphus is almost indistinct from the primary 

 cusp, whereas this tooth in P. opisthacus (Amer. Mus. Nat. Hist. 

 No. 16614) exhibits a division of the main outer cusp into a promi- 



\.,A 



.J IjIPJlj^^^^r-^^,/-^^^ 



-'^i^iJ,'' 



:il»SJ^ 



Figure 14. — Dracoclaenus griphus Gazin: a, M^ and M^ (U.S.N.M. No. 15789), type 

 specimen, lateral and occlusal views; b, M? and M* (U.S.N.M. No. 16182), lateral and 

 occlusal views; c, right ramus of mandible with Mi and M? (U.S.N.M. No. 1S773), lateral 

 and occlusal views; d, P* and part of M' (U.S.N.M. No. 15705), lateral and occlusal views. 

 X 3. Dragon Paleocene, Utah. 



nent protocone and a lesser tritocone placed close together. The 

 anteroexternal and posteroexternal styles are more prominent on P* 

 of the Dragon form, and a slightly better developed cingulum, though 

 discontinuous, is indicated on the outer surface. 



302662—41 4 



