36b 
MESOZOIC VERTEBRATA. 
He regarded them as belonging to a Saurian, and adds that he found in the 
same stratum the only fossil shells he had ever seen from that formation in 
New Mexico. These have the form of Natica, “ but are probably not sus¬ 
ceptible of accurate classification 
Fig. 3.—Metapodials of Dystropliceus viwmalw. 
