:i 



THE GEOLOGICAL RECORD 



209 



O rd er — Orn ithosau ria 



We come finally to one of the most remarkable develop- 

 ments of reptilian life, the bird-lizards, more commonly 

 ;mown as Pterodactyls, which accompanied all the other 

 trange forms of reptilian life in the Mesozoic period. They 



--•MU r- a &^s 



Fig. 63. — Skeleton of Pterodactylus spectabilis. 

 f>m the Upper Jurassic of Bavaria. Nat. size. This early form has teeth and 

 ■ a very short tail, and the body was not larger than that of a sparrow. 

 1 (B.M. Guide.) 



ae first found a little later than the earliest Dinosaurs, in 

 t.& Lower Lias of Bavaria ; but as they are, even then, 

 fijly developed, though small, there must have been a long 

 s ;ies of intermediate forms which probably reached back 

 t'the Triassic if not to the Permian era. 



P 



