NORTH-CAROLINA GEOLOGICAL SURVEY. 



Fio. 40 



so to resist the entrance of a musket ball. The same remark* 



as it regards ownership 

 have already been made, 

 respecting other bones of 

 this class, so common in 

 these deposits. That there 

 were two, at least, power 

 ful reptiles, is evident from 

 their bones and teeth, but 

 in no instance have two 

 been found attached, and 

 in such relations that it 

 ^would be safe to affirm that 



they belonged to the same individual. 



FIGS. 41 



ELLIPTONOI &amp;gt;ON COMPRESSUS. EMMONS. 



Tooth curved, robust, sub-conical and 

 pointed ; crown circular at base, becom 

 ing elliptical, arid finally sub-elliptical, or 

 with the inside more flattened or less 

 convex than the other : bicariuate ; the 

 anterior ridge becoming obsolete near 

 the base of the crown, and without ser- 

 nitures or rugosities ; enamel rather fine 

 ly wrinkled longitudinally, or faintly ru 

 gose, and none of the rugosities extend t&amp;lt; &amp;gt; 

 the apex; dentine is concentric; pulp 

 cavity open, conical, carinate. Figures 

 natural size. Figure 42, transverse sec 

 tion. 



This tooth is broken at the base of the 

 crown, and has lost a small part of its 

 apex. 



It differs very clearly from the Polyp- 

 tychodon, Pliogonodon, Mossosaurus or 

 Pleiosaurus. The clear and distinct marks of difference are 

 -,lh)wn in the figures of each referred to except the Pleiosau 

 rus. This tooth was found in the miocene near the Cape 



