PART III: UNGULATA, TOXODONTIA—TYPOTHERIA. 945 
TOXODONTIDZE. 
(Including Toxodontid:e and Xotodontid:e of Ameghino.) 
FAMILIES AND SUBFAMILIES. 
Toxodontide GERVAIS, 1847. Xotodontide AMEGHINO, 1889. 
GENERA AND SUBGENERA. 
Name, authority, and date. Type or included species, and localities. 
Carolibergia MERCERAT, 1899 ....... Carolibergia azulensis ( — Toxodon platensis) , Prov- 
ince of Buenos Aires, Argentina. 
Dilobodon AMEGHINO, 1886 ......... Dilobodon lutarius, Paraná, Argentina. 
Dinotoxodon MERCERAT, 1895 ....... Toxodon paranensis, Paraná, Argentina. 
Eutomodus AMEGHINO, 1889 ........ New name for Tomodus Ameghino, 1886. 
Eutrigonodon AMEGHINO, 1891...... New name for Trigonodon Ameghino, 1887. 
Haplodontherium AMEGHINO, 1885... Haplodontherium wildei, Paraná, Argentina. 
Hyperoxotodon MERCERAT, 1895 ..... Stenotephanos speciosus, Rio Santa Cruz, Pata- 
gonia. 
Lithops* AMEGHINO, 1887 .......... Lithops previus, southern Patagonia. 
Pachynodon BvRnMEIsTER, 1891 ...... Pachynodon validus, Santa Cruz de la Sierra, 
Bolivia; P. modicus, Argentina. 
Palxolithops AMEGHINO, 1891 ....... New name for Lithops Ameghino, 1887. 
Palyeidodon Rorn, 1898............ Palyeidodon obtusum, Rio Collon-Curá, Patagonia. 
Plesioxotodon RorHB, 1901........... Plesioxotodon tapalquensis, Argentina. 
Pseudotoxodon MonENoO, 1889 ....... Pseudotoxodon formosus, Monte Hermoso, Ar- 
gentina. 
Stenotephanos AMEGHINO, 1886 ...... Toxodon plicidens, Paraná, Argentina. 
t Tomodus AMEGHINO, 1886......... Tomodus elautus, Paraná, Argentina. (See Hu- 
tomodus. ) 
Moxodon OWENS Sse se EET Toxodon platensis, Rio Sarandis, Uruguay. 
Toxodontherium AMEGHINO, 1883... Toxodontherium compressus, Paraná, Argentina. 
Trigodon AMEGHINO, 1887 .......... Trigodon gaudryi, Monte Hermoso, Argentina. 
t Trigonodon AMEGHINO, 1891....... Emendation of Trigodon Ameghino, 1887. (See 
Eutrigonodon. ) 
Xotodon AMEGHINO, 1887........... Toxodon foricurvatus, Paraná, Argentina. 
XOTODONTIDZE. (See TOXODONTIDZ. ) 
TYPOTHERIA. » 
EUTRACHYTHERIIDZE. 
FAMILIES AND SUBFAMILIES. 
Eutrachytheriide AMEGHINO, 1897. i Trachytheride AwEGniNo, 1894. 
GENERA AND SUBGENERA. 
Name, authority, and date. Type or included species, and localities. 
Eutrachytherus AMEGHINO, 1897..... New name for Trachytherus Ameghino, 1889. 
Proedium AMEGHINO, 1895.......... Proedium solitarium, Patagonia. 
T Trachytherus AMEGHINO, 1889...... Trachytherus spegazzinianus, Province of Neu- 
quen, Argentina. (See Eutrachytherus. ) 

@Said to be preoccupied by Lithopsis ScupDER, 1878, and therefore replaced by 
Palzolithops. 
bZyrre,, Handbuch Paleont., IV, Abth. I, pp. 62, 212, 1892; Abth. II, p. 490, 1893. 
1591—No. 28—03———60 
