80 ROY L. MOODIE 
SAURERPETON LATITHORAX Cope gen. nov. 
(Fig. 23) 
The new genus Saurerpeton is erected for the reception of the 
species described by Cope in 1897" as Sauropleura latithorax. ‘The 
characters which distinguish the genus not only from Sauropleura but 
from all other known Microsauria are the broad plate-like character of 
the ventral scutellation, the broad rounded character of the pectoral 
plates, and the broad short skull. The structure (Fig. 23) of the skull 
Fic. 23.—Outline of the cranial elements of Saurer peton latithorax Cope. Less than 
natural size. 
is nearest to that of the genus Diceratosaurus but the present form 
lacks the horns and the shape of the skull is also far different from that 
of the species of Diceratosaurus. 
The skull of Saurer peton latithorax Cope is broad and heavy. ‘The 
teeth are heterodont. ‘The body is broad and stout and the limbs are 
of unusually strong proportions. The ventral armature consists of 
broad imbricating scutes which form a single piece across the abdo- 
men and are but slightly angulated to form the chevron. All other 
known Microsauria have the chevron armature strongly angulated 
and the scutes are usually long and slender. A distant approach to 
the condition of Saurerpeton is found in the Ctenerpeton, but the pecu- 
liar comb-like expansions and the shape of the body in the latter 
distinguish the two forms. 
t Proc. Amer. Phil. Soc., 1897, p. 86. 
