242 KANSAS UNIVERSITY SCIENCE BULLETIN. 



Discosaurus Leidy, Proc. Acad. Nat. Sci. Phil., 1851, 326 (1852). 



velustus Leidy, 1. c; Cope, Ext. Batrach. Alabama. 

 Brimosaurus Leidy, Proc. Acad. Nat. Sci. Phil., 1851, 73. 



grand is Leidy, 1. c, pi., i, ff. 1-3; Cope, Ext. Batrach., 1869, 43. Clark 

 county, Arkansas. 



Polycotylus Cope, Ext. Batrach., 1869, 39. 



latipinnis Cope, 1. c; Cret. Vert. 60. Niobrara Cretaceous, Kansas. 

 Cimoliasaurus Leidy, Proc. Acad. Nat. Sci. Phil., 1851, 325 (1852). 



magnus Leidy, 1. c; ibid., 1851, 72, pi. u, ff. 4-6; Cret. Rept., 1865, 25, pi. 

 v, ff. 13-19, pi. vi ; Cope, Ext. Batrach., 1869, 42; Lydekker, Cat. Fos. 

 Rept., ii, 211. Cretaceous, New Jersey. 



planior Leidy, Proc. Acad. Nat. Sci. Phil., 1870, 22. Cretaceous, New 

 Jersey. 



snowii Williston, Trans. Kans. Acad. Sci., 1891; Cope, Proc. Amer. Phil. 

 Soc, 1894, 199. Niobrara Cretaceous, Kansas. 



laramiensis Knight, Amer. Jour. Sci., x, 1900. Baptanodon beds, Juras- 

 sic, Wyoming. 



Uronautes Cope, Proc. Acad. Nat. Sci. Phil., 1876, 345. 

 cetiformis Cope, 1. c, 346. Fort Pierre Cretaceous, Montana. 



Embaphias Cope, Proc. Amer. Phil. Soc, 1891, 112. 

 circulosu8 Cope, 1. c, 112. Fox Hills Cretaceous, South Dakota. 



Oligosimus Leidy, Proc. Acad. Nat. Sci. Phil., 1872, 39 (1873). 

 grandcevus Leidy, 1. c, 40. Green River, Wyoming (Cretaceous). 



Orophosaurus Cope, Amer. Nat., 1887, 564. 

 paueiporus Cope, 1. c. Fox Hills Cretaceous, New Mexico. 



Piptomerus Cope, Amer. Nat., 1887, 564. 



megcdoporus Cope, 1. c. Fox Hills Cretaceous, New Mexico. 



microporus Cope, 1. c. Ibid. 



liexagoniis Cope, 1. c. Ibid. 

 Megalneusaurus Knight, Amer. Jour. Sci., v, 1898, 375. 



rex Knight, Science, 1895, 419 (Cimoliasaurus). Jurassic, Wyoming. 

 Trinacromerum Cragin, Amer. Geologist, Dec. 1888. 



bentonianum Cragin, 1. c. ; ibid., 1891, 171. Benton Cretaceous, Kansas. 



Elasmosaurus Cope, Notes of Geology Ul Pacific, Leconte, 1868. 



platyurus Cope, 1. c, 68; Ext. Batrach., 1869, 44; Hayden, Geol. Surv. 

 Terr., 1870, 393. Fort Pierre Cretaceous, Kansas. 



serpentinus Cope, Bull, U. S. Geol. Surv., in, 578, 1877. Nebraska Cre- 

 taceous, Nebraska. 



intermedins Cope, Proc. Amer. Phil. Soc, 1894, 112. Fort Pierre Cre- 

 taceous, South Dakota. 



ori( ntalis Leidy, Proc. Acad. Nat. Sci. Phil., 1870, 22. 



(Discosaurus) Cope, Ext. Batrach., 1869,55. Cretaceous, New Jersey. 



Pantosaurus Marsh, Rep. Geol. Congress, 1891, 155; Amer. Jour. Sci., 1895, 

 408; ibid., xlii, 1892, 388 (Parasaurus). 



8t intus Marsh, Amer. Jour. Sci., xlii, 338 (1891); ibid., i, 406, 1895, ff. 

 Baptanodon beds, Jurassic, Wyoming. 



