RECORDS. 303 



Class Reptilia. 



I. Subclass Synapsida, Osborn. 



1. Order Cotylosauria, Cope \_^^ Pareiasauria, Seeleyj. 



Family Diadectidoe. 

 Family Pariotichidae. 

 Family Pareiasaurid^. 



2. Superorder Anomodontia, Owen [=i Theromorpha, Cope, in part]. 



Order I. Theriodontia, Owen. 



Suborder I. Therocephalia. 



Suborder II, Cynodontia, Owen. 

 Order II. Dicynodontia, Owen. Inc. Sedis. 

 Order III. Placodontia, Owen. 



3. Order Sauropterygia. 



Suborder I. Simosauria, Gervais [=: Nothosauria]. 

 Suborder II. Plesiosauria. 



4. Order Testudinata. 



Suborder I. Pleurodira. 

 Suborder II. Cryptodira. 

 Suborder III. Trionychia. 



II. Subclass DiAPSiDA, Osborn. 



1. Superorder Diaptosauria, Osborn. 



Order I. Procolophoma, Seeley. 

 Order II. Protorosauria, Seeley. 



Order III. Proganosauria, Baur. 

 Order IV. Gxathodontia, Owen. 

 Order V. Pelycosauria, Cope. 

 Order VI. Choristodera, Cope. 



Order VII. Rhynchocephalia, Gunther. 



2. Order Parasuchia, Huxley. 



Suborder I. Aetosauria. 

 Suborder II. Phytosauria. 



3. Order IcHTHYOSAURiA, Blainville, 1835 [= Ichthyopterygia, Owen, 1839] 



4. Order Crocodilia. 



Suborder I. Mesosuchia. 

 Suborder II. Eusuchia. 

 Suborder III. Thalattosuchia. 



5. Superorder Dinosauria, Owen. 



Order I. Theropoda, Marsh. 



Suborder I. Megalosauria [= Thecodontia, Owen]. 



Suborder II. Compsognatha, Huxley. 

 Order II. Opisthocgelia, Owen [= Sauropoda, Marsh]. 

 Order III. Ornithopoda, Cope [ = Predentata, Marsh]. 



6. Superorder Squamata. 



Order I. Lacertilia. 

 Order II. Mosasauria. 

 Order III. Ophidia. 



7. Order Pterosauria. 



