174 



DINOSATTRIA. 



Family ANCHISAURID^. 



Imperfectly known. Teeth in some instances (fig. 29) without 

 serrations on the anterior border, but in others (fig. 30) with 

 oblique serrations on both borders. Cervical vertebrae amphiccelous ; 

 typically (Anchisaurus l ) five digits in manus and three in pes ; and 

 pubis rod-like. 



Fig. 29. 



Epicampodon 2 indicus (Huxley). — Fragment of mandible ; from the Panchet 

 beds of the Lower Grondwanas of Bengal, f . A, lateral aspect ; JB, pos- 

 terior do. ; C, section of tooth. (From the ' Paleeontologia Indica.') 



Genus THECODONTOSAURUS, Riley & Stutchbury 3 . 



Teeth (fig. 30) with oblique serrations on both borders ; ilium 4 

 (provisional) of a Megalosaurian type. Referred to this family by 

 Marsh. 



Fig. 30. 



Thecodontosaurus platyodon (R. & S.).^ — Lateral aspect of tooth ; from the 

 Upper Trias of Bristol, i . 



1 Originally Amphisaurus, but altered by Marsh in Amer. Journ. ser. 3, 

 vol. xxix. p. 169. 



2 Syn. Ankistrodon. — Preoccupied. 



8 Proc. Geol. Soc. vol. ii. p. 398 (1836— vol. dated 1838). 

 4 Huxley, Quart. Journ. Geol. Soc. vol. xxvi. pi. iii. fig. 7 ; the anterior part 

 is described as posterior. 



6 Referred to this genus by Huxley, op. cit. 



