255 

 POLYCOTYLUS, Cope. 



Extinct Batrachia and Reptilia of North America, 1869, p. 3G. 



Polycotylus latipinnis, Cope. Plate VII, fig. 7. 



Extinct Batrachia and Reptilia of North America, 1869, p, 36, Plate I, rigs. 1-13 ; Hayden'a Geo- 

 logical Survey of Wyoming, 1870, p. 3K8. 



From the Niobrara chalk of Kansas. 



CIMOLIASAURUS, Leidy. 



Discosaurits et Brimosaurus, Leidy, Cope, Extinct Batrachia and Reptilia of North America, 1869, p. 40. 



Cimoliasaurus grandis, Leidy. 



Cope, L. c, p. 43. — Brimosaurus grandis, Leidy, Proceedings of the Academy of Natural .Sci- 

 ences, 1854, p. 72, Plate I; figs. 1-3. 



Cretaceous of Arkansas. 

 Cimoliasaurus magnus, Leidy. 



Proceedings of the Academy of Natural Sciences, 1851, p. 325 ; ibid., 1854, 72, Plate II, figs. 

 4-6; Cretaceous Reptiles of North America, 1865, p. 25, Plates V, figs. 13-19, and VI; 

 Cope, Synopsis of the Extinct Batrachia and Reptilia of North America, 1869, p. 42, 43. 



Greensand of No. 5, New Jersey. 

 Cimoliasaurus vetustus, Leidy. 



Cope, Extinct Batrachia and Reptilia of North America, 1869, p. 42. — Discosaurits vetustus, 

 Leidy, Proceedings of the Academy of Natural Sciences, Philadelphia, 1851, 326 ; 

 Cretaceous Reptiles of the United States, 1865, p. 22. 



Alabama, No. ?. 

 Cimoliasaurus planior, Leidy. 



Proceedings of the Academy of Philadelphia, 1870, p. 22. — Disoosaurus vetustus, pars, Leidy, 

 Cretaceous Reptiles of the United States, p. 23, Plate V, figs. 10-12. 



Cretaceous, No. 1, Mississippi. 



ELASMOSAURUS, Cope. 



Leconte's Notes on the Geology of the Smoky Hill Route of the Union Pacific Railroad, 1868, 

 p. 63; Synopsis of the Extinct Batrachia and Reptilia of North America, 1869, p. 44 ; 

 American Journal of Science and Arts, 1870, pp. 141,268. 



Elasmosaurus orientalis, Cope. 



Synopsis of the Extinct Batrachia and Reptilia of North America, 1869, p. 55.— Discosaurus 

 orientalis, Leidy, Proceedings of the Academy of Natural Sciences, Philadelphia, 1870, 

 p. 22. 



Greensand, No. 4, New Jersey. 



