ALPHABETICAL LIST OF GENERA AND SPECIES 



For convenient reference, there is given below an alphabetical list of genera and species, with the 

 author and date of original description, and the page of present description, together with the text 

 figure or plate illustrating each form. Genera and species herein considered synonymous with any 

 previously described are not italicized. 



Agriotherium, Scott 1898 = Protoreodon; p. 



31. 

 Bathygenys, Douglass 1901 ; p. 4-1 j Table 1. 



B. alpha, Douglass 1901; genotype; p. 41; 

 Text figs. 18-20. 



Brachymeryx, Cope 1878 <= Cyclopidius; p. 



241. 

 Chelonocephalus, Thorpe 1921; p. 256; Table 



13. 

 Cotylops, Leidy 1851 = Merycoidodon; p. 45. 



C. speciosa, Leidy 1851 =M. culbertsonii; 

 p. 47. 



Cyclopidius, Cope 1878; p. 241; Table 13. 

 C. brevifacies, Cope 1878 = C. simus; p. 



251; Text figs. 178-179. 

 C. calif ornicus, Stock 1930; p. 242; PI. 



XXXVII, figs. 1-5. 

 C. decedens, Cope 1884 = C. simus; p. 252; 



PL XXXVIII, fig. 4. 

 C. densus, Loomis 1925; p. 243; Text figs. 



170-172; PI. XLIX. 

 C. emydinus, Cope 1 884 = C. simus; p. 252; 



Text figs. 180-182. 

 C. feliceps, Cope 1878 = C simus; p. 254; 



PI. XXXVIII, figs. 9-10. 

 C. heterodon, Cope 1 878 = C. simus; p. 254; 



PI. XXXVIII, fig. 5. 

 C. incisivus, Scott 1893 = C. simus; p. 255; 



PI. XXXVIII, figs. 6-8. 

 C. lullianus, Thorpe 1921 ; p. 246; Text figs. 



173-177. 

 C. {Chelonocephalus) schucherti, Thorpe 



1921; p. 256; Text figs. 183-185. 

 C. simus, Cope 1878; genotype; p. 249; PI. 



XXXVII, figs. 10-11, PL XXXVIII, figs. 



1-3. 

 Desmatochcerus, Thorpe 1921 = Promeryco- 



chcerus; p. 104. 

 Eomeryx, Marsh 187 '5 = Protoreodon; p. 31. 

 Eporeodon, Marsh 1875; p. 62; Tables 3-4. 

 E. bullatus, Leidy 1869; p. 65; Text figs. 7, 



28-30. 



Eporeodon condoni, Thorpe 1921; p. 66; Text 



figs. 31-33. 

 E. dickinsonensis, Douglass 1907; p. 68; 



Text figs. 4, 34; PL IV, figs. 1-3. 

 E. Helena?, Douglass 1901; p. 69; PL IV, 



figs. 4-8. 

 E. leptacanthus, Cope 1884; p. 70; PL III, 



figs. 6-8. 

 E. longifrons, Cope 1884; p. 71 ; PL V, figs. 



1-3. 

 E. 1. perbullatus, Thorpe 1921; p. 72; Text 



figs. 35-37. 

 E. major, Leidy 1854; p. 74; Text fig. 7; 



PL VI, figs. 1-3. 

 E. m. cedrensis, Matthew 1901; p. 75; PL 



V, figs. 4-6. 

 E. m. cheeki, Schlaikjer 1934; p. 76; PL 



VII, figs. 1-3, PL XXXIX, fig. 2. 



E. m. hybridus, Leidy 1869; p. 77; Text 



. fig ' 38 '. 

 E. m. relictus, Loomis 1924; p. 78; Text fig. 



39; PL VI, figs. 4-5. 

 E. montanus, Douglass 1907; p. 80; Text 



fig. 40; PL IX, figs. 1-3. 

 E. occidentalis, Marsh 1873; genotype; p. 



81; Text figs. 41-43. 

 E. pacificus, Cope 1884; p. 83; PL VIII, 



figs. 1-3. 

 E. parvus, Thorpe 1921; p. 84; Text figs. 



44-45. 

 E. socialis, Marsh 1884; p. 86; Text figs. 



46-64, 186; PL XLII, PL L, figs. 1-2. 

 E. thurstoni, Stock 1934; p. 96; PL XLIII, 



E. trigonocephalus, Cope 1884; p. 96; PL 



VIII, figs. 4-6. 



Eucrotaphus, Leidy 1850; p. 61. 



E. jacksoni, Leidy 1850; genotype; p. 61; 

 PL I, figs. 13-15. 



Hy ornery x, Marsh 1894; p. 40; Table 1. 

 H. breviceps, Marsh 1894; genotype; p. 40; 

 Text figs. 16-17. 



