PART III: UNGULATA, PERISSODACTYLA. 939 
Name, authority, and date. Type or included species, and localities. 
Mesotapirus OsBorn, 1889. .......... Lophiodon occidentalis, South Dakota. 
Tapirotherium BrAriNvILLE, 1817 .... ‘Species of Palxotherium, with teeth intermedi- 
ate between those of Tapirus and Palzxothe- 
rium.’ 
Trimenodon GroaER, 1841.......... Lophiodon tapirotherium ( — L.tapiroides?, Alsace, 
Germany.) (See Lophiodon.) 
PALZEOTHERIIDZE. « 
FAMILIES AND SUBFAMILIES. 
Palaeotheriina BoNAPARTE, 1850. Paloplotheriinz OsBorn, 1892. 
Paleotheride * GrRARD, 1852. 
GENERA AND SUBGENERA. 
Name, authority, and date. Type or included. species, and localities. 
Chasmotherium RüTrwEYER, 1862.... Chasmotherium cartieri, Egerkingen, Switzerland. 
Monacrum AYMARD, 1853 .......... Palsotheriwm velaunum, P. medium, France. 
Palxotherium G. Cuvier, 1804 ...... Palxotherium medium, Paris Basin, France. 
Paloplotherium Owrn, 1848......... Paloplotherium annectens, Hordwell, England. 
Plagiolophus PomEt, 1847 .......... Palxotherium minus, P. minimum, France. 
Propalxotherium GERv AIS, 1849... (No species mentioned in first description;) 
Palzotherium isselanum, Issel; Propalzotheriwm 
argentonicum (1859), Argenton, France. 
RHINOCEROTIDZE. 
FAMILIES AND SUBFAMILIES. 
Aceratheriine OsBoRN, 1892. KElasmotherina BoNAPARTE, 1845. 
Atelodinz OsBorn, 1900. Elasmotheriidae Gin, 1872. 
i Brachypodine OsBorn, 1900. { Hippodontine BRANDr, 1878. 
Cxnopidx Corn, 1887. Ortholophodontide RrrcHENow, 1887. 
Ceratorhinz OsBorn, 1898. Rhynocerotide ^ Gray, 1821. 
Diceratheriinse OsBorn, 1892. t Sphaleroceratine Branpt, 1878. 
Teleoceratine Hay, 1902. 
GENERA AND SUBGENERA. 
Name, authority, and date. Type or included species, and localities. 
Aceratherium Kaup, 1832 .......... Rhinoceros incisivus, Mainz, Germany. 
AMhe Ops: COPE, 1879 — 32.5. 2252-22 Aceratherium megalodus, Colorado. 
** Atelodus PoMEL, 1853" ........... Rhinoceros elatus, R. leptorhinus, France; R. tich- 
orhinus, Siberia; Atelodus aymardi, France; R. 
bicornis, R. keitloa, R. simus, Africa. 
Badactherium Croizet, 1853 ........ Badactherium borbonicum, Auvergne, France. 
Canopus Cope; 1880 :.....-....-.-. Aceratherium mite, South Dakota. 
Ceratorhinus Gray, 1867 ........... Rhinoceros sumatrensis, Sumatra; R. monspelli- 
anus, Hérault, France. 
Ceratotherium GRAY, 1867 .......... Rhinoceros simus (type), R. oswellii, South Africa. 
** Coelodonta Bronn, 1831" .......-.. Coelodonta boiei, Heidelberg, Germany. 

@Giuu, 1872. Here Including only the genera (with their subgenera and syno- 
nyms) mentioned by Osborn as belonging to this family. (See Bull. Am. Mus. 
INSUUBEDISU NE Y, LV) p»99,11892.)) 
b Rhinocerotidee OwEN, 1845. 
