MONOGRAPH 
OF 
THE FOSSIL REPTILIA 
OF THE 
LIASSIC FORMATIONS. 
BY 
PROFESSOR OWEN, E.R.S., D.C.L., 
FOREIGN ASSOCIATE OF THE INSTITUTE OF FRANCE, 
ETC. ETC. 
PART SECOND. 
P T E R 0 S A U R I A. 
Pages 41—81 ; Plates XVII— XX. 
LONDON : 
PRINTED FOR THE PALiEONTOGRAPIIlCAL SOCIETY. 
1870. 
