Ijotogoims, J)idoloplius, Lambdaconus. Plesiphenacodus. Protogonodon. 723 
873. tEctogonus, Cope, 1884. 
Conoryctes, p., Cope, 1884. 
4476.tditrigonus, Cope, Amer. Natur., 1884, fEocaen. infer, 
p. 795, fig. p. 796; Tert. Vert., p. 404, Nov.-Mexico. 
pl. 33 g et 39 d; Trans. Am. riiil. Soc., 1888, 
p. 356; Osb. et Earle, BuU. Am. Mus., 
1895, p. 56. 
comma, p.. Cope (Conoiyctes), 1881. » 
Familia III. t Phenacodontidae. 
874. fDidolophus, AmegMno, 1897. 
‘^477. -j- multicuspis, Amegh., Bol. dei Inst. Geogr. f Cretae, super. 
Arg., 1897, sep., p. 33, lig. 22, p. 34. Patagonia. 
875. fLambdaconus, Amegh., 1897. 
4478. jsuinus, Amegh., Bol. dei Inst. Geogr. f Cretae, super. 
Arg., 1897, p. 35, fig. 23. Patagonia. 
876. t Plesiphenacodus, Lemoine, 1896. 
Phenacodus, p., Lem.; ‘ifConaspidotherium, Lem., 1891. 
4479. -j- remensis, Lem., Bull. Soc. Geol., 1896, fEocaen. infer, 
p. 344, pl. 14, fig. 2 — 4 = Conaspidotherium Gallia Oriental. 
Aineghinoi, Lem., Bull., 1. e., 1891, p. 275, (Reims). 
— fide Ameghino, Bol. Inst. Geogr. Arg., 
1897, p. 36, nota). 
877. t Protogonodon, Scott, 1892. 
Mioclaeriioi, p., Cope, 1888. 
4480. f pentacus, Cope, Trans, Am. Phil. Soc., fEocaen. infer. 
1888, p. 325; Scott, Proc. Ac. Nat. Sc. Nov.-Mexico. 
Phil, 1892, p. 322; Osb. et Earle, Bull 
Am. Mus., 1895, p. 67, fig. 20, 21; Am. 
Nat., 1893, p. 377; Matthew, BuU. Am. 
Mus., 1897, p. 302. 
4481. f stenognathus (Cope), Matthew, Bull. Am. fEocaen. infer. 
Mus., 1897, p. 302. Nov.-Mexico. 
