HISTORICAL REVIEW OF THE PELYCOSAURIA. 



II 



In the same j'ear Seeley (121) proposed the following arrangement: 



Order Anomodontia. 



Suborders Pareiasauria, Procolophonia,Dicynodoniia,Gennetotheria,Pelycosauria (?), 

 Theriodontia , Cotylosauria, Placodontia . 



In 1S90 was published Lydekker's Catalogue of the Fossil Reptiles of 

 the British Museum, Part IV (106), which has the following arrangement 

 of the forms most closely related to the Pelycosauria: 



Theromorous Branch. 



Order Anomodontia. 



Suborders Procolophonia, Dicyyiodontia, Theriodontia {Pelycosauria), including the 

 families Galesaurida, Tapinocephalidce , Diadectidce , Clepsydropidce , Gorgonopsidce . 

 Suborder Pariasauria. 



RHYNCHOCEPHALH 



Diagram accompanying Baut's paper in the journal of Morphology, illustrating his views o( the phylogeny o( the reptiles. 



In 1889 (74) Cope changed the name of the order from Theromorpha to 

 Theroniora^ as the former was preoccupied. In the same paper he reestab- 

 lished the Cotylosauria^ with a new description, as a suborder of the Thero- 

 moray to include the families Pareiasauridce, PariotichidcB^ and Diadectidcs. 



