364 



THE CARBONIFEROUS SYSTEM. 



Baphetes, but longer in proportion ; and mucli resembles that of the 

 labyrinthodont reptiles of the Trias. The bones of the skull are 

 sculptured as in Baphetes, but in a smaller pattern. The nostrils are 

 small, and near the muzzle ; the orbits are circular, and separated by 



Fig. 142. — Dendrerpeton Acadianum, Owen. 



(a) Skull; natural size. 



(6) Teeth, inner and outer series ; magnified. 



(c) Sectionof one of the outer series; magnified. 



(d) Bony scale; enlarged. 



(e) Vei'tebra ; natural size. 



(/)Ribs; natural size. 

 (ff) Cranial bone, showing sculpture. 

 (h) Humerus and ulna; natural size. 

 (i) Distal end of femur and portion of 

 tibia and fibula ; natural size. 



a space of more than their own diameter. In the upper jaw there is 

 a series of conical teeth on the maxillary and intermaxillary bones. 

 Those on the intermaxillaries are much larger than the others, and 

 have the aspect of tusks or canines. Within this outer series of teeth, 



