GEOLOGY OF THE BRISTOL COALFIELD. 



43 



good a collection in our Museum. They weie collected in a quarry 

 on Durdham down, near Belgrave terrace in the year 1836. They 

 comprise bones of the Thecodontosaurus and Palaeosaurus. 

 Almost all the principal parts of the skeleton of the Thecodon- 

 tosaurus were obtained, and may be examined in the several cases. 

 There is the portion of jaw that shows well the nature of the teeth, 

 and their peculiar attachment to the jaw that originated the name. 

 These huge saurians must have been 30ft. long, and possessed of 

 terrible power. The teeth were sharp, serrated and curved br'ckwards, 

 so that no creature could by any possibility escape when once seized. 

 Fig. 23 shows the position and locality of these interesting fossils 

 Most of them are unfortunately in a broken condition from 

 attrition and force of the loose boulders of the ancient triassic sea. 



Fig. 23. — Locality of Binomuria on Durdham Down. 



a— Dolomitic conglomerate containing Dinosaurian bones, c — Carboniferous 



limestone. 



The two divisions of the Trias that are so prominently seen on 

 the continent, namely, the Bunter and the Muschel Kalk, do not 

 appear to have ever been deposited in the Bristol area, for no 

 trace of them have ever been noticed. 



Fig. 24. — Section of the New River. 



a — Variegated Keuper marls, b — Keuper Sandstone. 



