14 



Iguanodontidae = Iguanodontidae, Cope, T. A. P. S., 



n. s., xiv, 91, 1869.'' 



Hadrosauridae r= Hadrosauridae, Cope, T. A. P. S., 



n. s., xiv, 91-98, 1869.'' 



Order CEOCODILIA. 



(Crocodilia et Thecodontia, partim, Owen, 1841.) 



Paeastjchia. 



Belodontidae =. Belodontidae, Cope, P. A. A. A. S., 



xix, 234, 1871 (name only).'" 



Amphicoelia. 



Teleosauridae = Teleosauridae, Cope, P. A. A. A. S., 



xix, 234, 1871 (name only). 

 Goniopliolididae = GoniophoUs, Owen, etc. 



Peocoelia. 



Thoracosauridae = Thoracosauridae, Cope, P. A. A. A. 



S., xix, 235, 1871 (name only).'' 

 Crocodilidae = Crocodilidae, Cope, P. A. A. A. S., 



xix, 235, 1871 (name only).'"' 



Order SAUEOPTEEYGIA. 



(Sauropterygia, Owen.) 

 ^. Placodontidae — Placodontidae, Cope, P. A. A. A. S., 



xix, 235, 1871 (name only).'' 



38 IguanodoDtidae, Huxley, Jonrn. Geol. Soc. London, 1870. 

 ^^ Hadrosauridae, Huxley, Journ. Geol. Soc. London, 1870. 



40 Thecodontia, Owen, pt. ; Cope, Tp. A. P. S., 1869, 32. 



41 Thoracosaurus, Leidy, Cope. 



42 Crocodilidae + AUigatoridae, Gray, + Gavialidae, Gray, + Holops and Thecach- 

 ampsa, Cope, etc., Pr. A. A. A. S., xix, 235, 1871. 



43piacodu8, Agass. 



