ANOMODONTIA. 



147 



There are about 30 caudal vertebrae, which rapidly become very small, but 

 nearly all bear neural arches and chevron bones ; after the sixth vertebra 

 they become laterally compressed and the transverse process disappears as 

 a tubercle. In the pectoral arch the clavicles rest on the front border of 

 the large T-shaped iuterclavicle, meeting in the middle line and arched to 

 meet the median process of the scapula. There also appears to be a 



FIG. 93. 



Pariaxaurus baini; diagram of palate, one-seventh nat. size. Karoo Formation 

 (Permian or Triassic) ; Cape Colony. b.occ., basioccipital ; &.*., basi- 

 sphenoid ; ecpt., ectopterygoid region ; i.pt., interpterygoid vacuity, open- 

 ing backwards; mx., maxilla; p.pt., hinder lateral process of pterygoid 

 extending to quadrate ; pi., palatine region ; pt., anterior median part 

 of pterygoid region ; pt.na., posterior nares ; qu., quadrate ; v, vomerine 

 region. The small circles indicate the bases of conical teeth. 



supraclavicle on each side. The epicoracoid seems to be entirely in 

 front of the glenoid cavity for the humerus, and there is a foramen 

 between the former element and the coracoid -proper. The humerus is 

 constricted in the middle and much expanded at each end; the epicon- 

 dylar foramen has not been observed. The very stout ulna has a con- 

 spicuous olecranon process. The carpus and manus are very imperfectly 



102 



