52 



Cope, Proceedings of the Aiiiericaii Philosophical Society, p. 574. Ij'io- 

 don dyspelor, Platecarpus nmdgei, P. ictericus, and Clidastes chicrin- 

 ruin described. 



1871. Marsh, in American Journal of Science and Arts, p. 472 (separata Jnne). 



VoW\s 0^ Pythonomorpha first described, and the hind limbs for 

 the first time stated to exist , and the species Clidastes dispar, tjc/ox, 

 vymanii, and pumilus, and Ptei'odactylus owenii described. 



Cope, in letter to J. P. Le-sley, in Proceedings of the American Philo- 

 sophical Society, p. 168 (separata October). Hind liml) of a Py- 

 thonomorph first described, and Platecarpius latispmus and P. cras- 

 sartus described. 



Cope, I. c, p. 172 (separata October). Protostega described, with hind 

 limbs and pelvis of Liodon dyspelor. Testudlnata first recorded. 



Cope, /. c, p. 264, December. Catalogue o{ Pythonomorpha found in 

 the Cretaceous strata of Kansas. Pterygoid bones first deter- 

 mined, and hind limbs described ; genera determined, and six new 

 species described. 



1872. Cope, /. c, p. 308 (separata January). Cynocercus incisus and Hyposaurus 



vebbii described. 



Marsh, American Journal of Science and Arts {separata March 9). 

 Pterodactylus ingcns and P. %-elox described. Name of P. owenii, 

 changed to P. occidentalis. Scuta o^ Pytlwnomorpha described. 



Cope, Proceedings of the American Pliilosophical Society (separata 

 March 11). Pterodactylus umbrosus and P. harpyia described. 



Cope, /. c, p. 403 (separata March). Protostega gigas fully described, 

 and southern and eastern species named. 



Marsh, American Journal of Science and Arts (separata May). Deter- 

 mination of position of phalanges of fore-limb, and of two addi- 

 tional hones connected with the opistliotic in Pythonoiuorpha; cor- 

 rection of position of the quadrate and confirmation of the previous 

 locations of the malar arch and stapes ; description of six new spe- 

 cies, and better definition of the genera Platecarpus and Liodon. 



Co|)c, in Proceedings of the Academy of Natural Sciences, Philadel- 

 phia (separata June 6th). Descri[)tion of Plesiosaurus gulo. 



Coj)e, in /. sup. c. (separata June 8th). Review of Professor Marsh's 

 paper of May, 1872; corrections of questions of nomenclature and 

 disc(iv(M'v. 



