52 



Cope, Proceedings of the American Philosophical Society, p. 574. Lio- 

 don dyspelor, Platecarpus mudgei, P. ictericus, and Clidastes cineria- 

 rum described. 



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



Pelvis of Pythonomorpha first described, and the hind limbs for 

 the first time staterl to exist, and the species Clidastes dispar, veloa; 

 vymanii, and pumilus, and Pterodactylus oicenii described. 



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

 sophical Society, p. 168 {separata October). Hind limb of a Py- 

 thonomorph first described, and Platecarpus latispimis and P. cras- 

 sartus described. 



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

 limbs and pelvis of Liodon dyspelor. Testudinata first recorded. 



Cope, /. c, p. 2G4, December. Catalogue of Pythonomorpha found in 

 the Cretaceous strata of Kansas. Pterygoid bones first deter- 

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

 species described. 



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



vcbbii described. 



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

 Pterodactylus ingens and P. relax described. Name of P. oivenii 

 changed to P. occidenlalis. Scuta of Pythonomorpha described. 



Cope, Proceedings of the American Philosophical 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 I wo addi- 

 tional hones connected with the opisthotic in Pythonomorpha; 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. 



Cope, in Proceedings of the Academy of Natural Sciences, Philadel- 

 phia (separata June 6th). Description of Phswsaurus gulo. 



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

 paper nf May. 1872: corrections of questions of nomenclature and 

 discovery. 



