452 



FOSSIL VERTEBRATA OF NORTH AMERICA. 



Testudo turgida Cope. 



Cope, E. D. 1892 J, p. 127. 

 1892 E, p. 255. 



1892 P. 



1893 A, p. 47. 

 Pliocene (Blanco); Texas. 



Testudo undata Cope. 

 Cope, E. D. 1875 F, p. 74. 



Cope, E. D. 1877 K, p. 283, pi. Ixvii, figs. 1,2. 

 Hay, O. P. 1899 G, p. 349. 



Miocene (Loup Fork); New Mexico. 



Testudo sp. indet. 



Leidy, J. 1860 B, p. 122, pi. xxviii, figs. 1-4. 

 Pleistocene; South Carolina. 



Suborder TRIONYCHIA. 



Unless otherwise indicated, the following 

 authors refer to this group under the name 

 Trionychoidea. 

 Baur, G. 1888 B, p. 736. 



1889 C, p. 240. (Chilotse.) 



1890 D, p. 536. (Trionychia, Chilotae.) 



1891 B, pp. 418, 420. (Trionychia.) 

 Boulenger, G. A. 1889 A, pp. 5, 237. 

 Cope, E. D. 1891 N, p. 39. 



Dumeril and Bibron, 1834, Erp. Gen., i, p. 353; ii, 



p. 461. (Potamites.) 

 Gadow, H. 1898 A, p. 91. (Trionychoidea.) 



Gray, J. E. 1872 A. 



Gunther, A. 1888 A, p. 457. 



Haeckel, E. 1895 A, p. 326. (Diacostalia.) 



Lydekker, R. 1889 G, p. 3. 



Nicholson and Lydekker 1889 A, p. 1116. 



Pictet, F. J. 1853 A, p. 455. (Trionychides. ) 



Rutimeyer, L. 1874 A, pp. 13, 51. 



Seeley, H. G. 1880 B, p. 412. (Peltochelyidse.) 



Siebenrock, F. 1897 A. (Trionychoidse.) 



Stannius, H. 1856 A. (Trionychoidea.) 



Steinmann and Doderlein 1890 A, p. 634. 



Vaillant, L. 1894 A. (Mecraspedota.) 



Zittel, K. A. 1890 A, p. 513. (Triouychia.) 



PLASTOMENID^E nom. nov. 



Trionychia without fontanelles in the plastron behind the anterior border of the hyoplastron. 

 PLASTOMENUS Cope. Type P. thomasii Cope. 



Cope, E. D. 1873 M. 



1873 E, p. 617. 



1875 C, p. 35. 



1875 E, p. 92. 



1875 I. 



1875 W, p. 336. 



1877 K, p. 47. 



1882 E, p. 144. 



1884 O, pp. 112, 122. 

 Dollo, L. 1886 A, p. 94. 



Lydekker, R. 1889 G, p. 7. (Syn. of Trionyx.) 

 Nicholson and Lydekker 1889 A, p. 1118. 

 Zittel, K. A. 1890 A, p. 517. 



Plastomenus communis Cope. 

 Cope, E. D. 1875 C, p. 35. 

 1875 F, p. 96. 



1877 K, pp. 48, 50, pi. xxV, figs. 1-6. (Except 

 " var. ii," p. 50, which belongs to P. mo- 

 lopinus. ) 

 1882 C, p. 461. 

 1884 O, pp. 123, 126. 

 1888 C C, p. 301. (P. communis?) 

 King C. 1878 A, p. 377. 



Eocene (Puerco? and Wasatch); New Mexico. 



Plastomenus corrugatus Cope. 



Cope, E. D. 1875 C, p. 35. 



1875 F, pi 96. 



1875 W, p. 337. 



1877 K, p. 48, pi. xxv, flgs. 20-26. 



1884 O, p. 123. 

 King, C. 1878 A, p. 377. 



Eocene (Wasatch); New Mexico. 



Plastomenus costatus Cope. 



Cope, E. D. 1875 E, pp. 94, 261, pi. viii, fig. 8. 

 1875 I. 



1875 W, p. 337. 

 Cretaceous (Laramie); Saskatchewan. 



Plastomenus fractus Cope. 



Cope, E. D. 1875 C, p. 35. 

 1875 F, p. 96. 



1877 K, p. 49. pi. xxv, figs. 12-19. 

 1884 O, p. 123. 

 Eocene (Wasatch); New Mexico. 



Plastomenus insignis Cope. 



Cope, E. D. 1874 B, p. 454. 



1874 C, p. 29. 



1875 E, pp. 95, 261, pi. vi, fig. 10. 

 Cretaceous (Laramie); Colorado. 



Plastomenus lachrymalis Cope. 



Cope, E. D. 1874 O, p. 15. 

 1875 C, p. 35. 

 1875 F, p. 96. 



1877 K, pp. 48, 51, pi. xxv, fig. 7. 

 1884 O, p. 123. 

 Eocene (Wasatch); New Mexico. 



Plastomenus molopinus Cope. 

 Cope, E. D. 1872 M, p. 461. (Anostira.) 



1873 E, p. 620. 



1873 M, p. 279. 



1877 K, p. 50, pi. xxv, figs. 5, 6. (Var. ii of 

 P. communis.) 



1884 O, pp. 123, 125, pi. xviii, figs. 9-14. 



