HAY.] 



CATALOGUE. 



457 



NOTHOSAUROPS. Leidy. Type N. occiduus Leidy. 



Leidy, J. 1870 U. 



Cope, E. D. 1874 C, p. 28. (Syn. of Plesiosaurus. ) 



1875 E, p. 256. (Syn. of Plesiosaurus.) 

 Leidy, J. 1873 B, p. 287. (Nothosauras.) 

 Zittel, K. A. 1890 A, p. 600. (Syn.? of Champso- 

 saurus. ) 

 A genus of uncertain position. 



Nothosaurops occiduus Leidy. 



Leidy, J. 1870 U. 



Cope, E. D. 1874 C, p. 28. (Plesiosaurus.) 



1875 E, p. 256. ( Plesiosaurus. ) 

 Leidy, J. 1873 B, pp. 287, 345, pi. xv, figs. 11-13. 

 (Nothosaurus.) 

 Cretaceous (Laramie) ; S. Dakota. 



MEGALNEUSAURUS Knight. Type Cimoliosaurus rex Knight. 



Knight, W. C. 1898 B, p. 378. 



Meg-alneusaurus rex Knight. 

 Knight, W. C. 1895 A. (Cimoliosaurus.) 



1898 B, p. 379, figs. 1-3. 

 Jurassic; Wyoming. 



ELASMOSAURID^E 



Cope, .E.ZX1869M, p. 47. 

 1875 E, pp. 69, 78. 



Furbringer, M. 1900 A, pp, 322, 527. 

 Seeley, H. G. 1892 B, pp. 134, 151. 



POLYCOTYLUS Cope. Type P. latipinnis Cope. 



Cope, E. D. 1869 D. 

 1869 M, p. 34. 



1871 D, p. 386. 



1872 F, p. 335. 

 1875 E, p. 70. 

 1887 G, p. 564. 



Lydekktr, R. 1889 C, p. 52. (Syn. of Cimolia- 



saurus.) 

 Nicholson and Lydekker 1889 A, p. 1077. (Syn. of 



Cimoliasaurus. ) 

 Sauvage, H. E. 1876 A. 

 1878 A, p. 35. 



Seeley, H. G. 1892 B, p. 135. 



Zittel, K. A. 1890 A, p. 491. (Syn. of Cimolia- 

 saurus. ) 



Polycotylus latipinnis Cope. 

 Cope, E. D. 1869 D. 



1869 M, p. 36, pi. i, figs. 1-12. 



1871 D, p. 388. 



1872 F, pp. 320,335. 



1874 C, p. 27. 



1875 E, pp. 45,72,255, pi. vii, figs. 7,7a 

 Leidy, J. 1873 B, p. 279. 



Cretaceous (Niobrara); Kansas, Nebraska 



PiPTOMERtis Cope. Type P. megaloporus Cope. 



Cope, E. D. 1887 G, p. 564. 

 Lydekker, R. 1889 C, p. 182. 

 Seeley, H. G. 1892 B, pp. 136,138. 

 Zittel, K. A. 1890 A, p. 495. 



Piptomerus hexagonus Cope. 



o. 

 URONAUTES Cope. Type U. cetiformis Cope. 



Cope, E. D. 1887 G, p. 565. 



Cretaceous (Fox Hills); N. Mexico. 



Piptomerus megaloporus Cope. 

 Cope, E. D. 1887 G, p. 564. 



Cretaceous (Fox Hills); N. Mexico. 



Piptomerus microporus Cope. 



Cope, E. D. 1887 G, p. 665. 



Cretaceous (Fox Hills); N. Mexico. 



Cope, E D. 1876 I, p. 345. 

 Lydekker, R. 1889 F, p. 182. 

 Seeley, H. G. 1892 B, p. 136. 

 Zittel, K. A. 1890 A, p. 498. 



TTronautes cetiformis Cope. 

 Cope, E. D. 1876 I, p. 346. 



Cretaceous (Fox Hills) ; Montana. 



Uronautes sp. indet 

 Cope, E. D. 1887 G, p. 566. 



Cretaceous (Fox Hills); New Mexico. 



