Uintatherium. Eobasileus, Arsinoïtherium, Archaeoplus, Isotemnus. 587 



eOSO.jprinceps. Osborn, Scott et Speir. Pal. fEocaen. Wyoming. 

 Report, 1878, p. 81, pi. 7, f. 2. 



6081.-}-alticeps, Scott, Amer. Joiira. Se, 1886, f Eocaen. Wyoming. 

 p. 307, f. 4. 



6082.tlatifrons, Marsh — (4452). | Eocaen. Wyoming. 



eOSS.fsegne, Marsh — (4454). f Eocaen. Wyoming. 



6084. fsp., Cope, Rep. Geol. Suit., 1884, p. 593, f Eocaen. Wyoming.. 

 pi. 34, 35. 



1054. t Eobasileus, Cope, 1872. 



Lonolophodon, p., Cope, 1872. 

 Cope, Proc. Amer. Philos. Soc, 1872, p. 485. 



6085.|pressicornis, Cope — {4455). f Eocaen. Wyoming.. 



6086. ffiircatus, Cope — (4456). f Eocaen. Wyomingv 



Incertae Sedis. 



1055. t Arsinoïtherium, Beadnell, 1902. 

 Beadnell, Nature, 1902, p. 494. 



6087.tzitteli, Beadnell, 1. c, 1902, p. 494, fEocaen. Super, 

 fig. 1, 2; Surv. Dep., Publ. Works Ministry, J5]gvptus 



1902, 4 p. et 6 pL; Geol. Mag., 1903, (Fayum). 



p. 529, pi. 23, 24. 



6088. jandrewsi, Lankester, 1. c, 1903. fEocaen. Jï]gyptus.. 



Subordo YL j Ancy Bopoda. 

 Familia I. f Isoteinnidae. 



1056. t Archaeoplus, Amegh., 1898. 



Ameghino, Revue Scient., X, 1898, p. 74; Synops. Oeol.-Pal. Segund.. 



Cens. Arg., I, 1898, p. 174. 



6089. t incipiens, Amegh. — (7031) ; 1898, p. 174 ; f Cretac. infer. 

 Comunic. Mus. B.-Aires, 1900, p. 200, fig. 1. Patagouia. 



1057. flsoteninus, Amegh., 1897. 

 Ameghino, Bol. Inst. Geog. Argent., 1897, p. 480. 



6090. Iprimitivus. Amegh. — {42U8)\ id.. Anal. f Cretac. Super. 

 Mus. B.-Aires, 1904, p. 144, f. 177, 461. Patagonia. 



