Xll 



SCHEME OF CLASSIFICATION 



CLASS REPTILIA (p. 277). 



PROREPTILIA (p. 285). Eryops (p. 286). Cricotus (p. 287). 



Sub-Class. Order. Sub-Order Family. 



PROSAURIA I Microsauri (p. 288). 

 (p. 288) 



Prosauri 



(p. 290) 



f PEOTOROSAURI (p. 290). 

 \ RHYNCHOCEPHALI (p. 292). 



THERO- 

 MORPHA 



(p. 300) 



/' Pareiasauri (p. 304). 

 I Theriodontia (p. 306). 

 I Anomodontia (p. 309). 

 I. Placodontia (p. 311). 



Atheca (p. 333) 



SPHARGIDAE (p. 333). 

 CHELYDRIDAE (p. 338). 

 DERMATEMYDIDAE (p. 341). 



ClNOSTERNIDAE (p. 342). 



PLATYSTERNIDAE (p. 345). 

 TESTUDINIDAE (p. 345). 

 CHELONLDAE (p. 378). 

 PELOMEDUSIDAE (p. 390). 

 CHELYDIDAE (p. 399). 

 CAKETTOCHELYDIDAE (p. 404). 

 TRIONYCHIDAE 

 (p. 404). 



TEI.EOSAVRIDAE (p. 450). 

 METRIORHYNCHIDAE (p. 451). 

 MACRORHYXCHIDAE (p. 451). 

 GAVIALIDAE (p. 451). 

 ATOPOSAURIDAE (p. 453). 



GONIOPHOLIDAE (p. 453-). 



CROCODILIDAE (p. 454). 

 f MESOSAURIDAE (p. 476). 



^ NOTHOSAURIDAE (p. 477). 



" PLIOSATJRIDAE (p. 477). 

 PLESIOSAURIDAE (p. 478). 

 ELASMOSAURIDAE (p. 478). 



PYTHONO 



(p. 489). 



