
TITANOPS—TOMARCTUS. 681 
‘Titanops Marsn, 1887. Ungulata, Perissodactyla, Titanotheriidee. 
Am. Journ. Sci. & Arts, 3d ser., XX XIV, 330-331, figs. 11-12, Oct., 1887; Hay, 
Cat. Foss. Vert. N. Am., Bull. 179, U. S. Geol. Surv., 634, 1902 (type fixed). 
Species: Titanops curtus Marsh (type), from the Oligocene of Colorado; and 
T. elatus Marsh, from the Brontotherium beds of South Dakota. 
Extinct. 
Titanops: Tir&v, Titan; Ow, aspect. 
Titanotherium Leipy, 1852. : Ungulata, Perissodactyla, Titanotheriide. 
Leipy, in D. D. Owen’s Rept. Geol. Surv. Wis., Ia., Minn., ete., 551—552, tab. 
IX figs. 3, 3a, xm” figs. 3, 4, 6-8, 1852; Ancient Fauna Nebr., in Smithson. 
Cont. Knowledge, VI, art. vir, 72-78, pls. xvi, xvir figs. 1-10, June, 1853; 
Proc. Acad. Nat. Sci. Phila., 1853, 392; Osporn, Bull. Am. Mus. Nat. Hist., 
N. Y., X VI, 95-96, fig. 2, 1902. 
Type: Palxotherium ? proutii Owen, Norwood & Evans, from the Bad Lands 
(Oligocene) of White River, Nebraska, about 150 miles south St. Pierre, and 
near the Nebraska-South Dakota boundary. 
Extinct. 
Titanotherium: Tir &v, Titan; §ypior, wild beast—‘‘as expressive of its very great 
size." (Lerpy.) 
Toeniodus Pome, 1854. Glires, Theridomyid:e. 
Cat. Méth. Vert. Foss. Bassin de la Loire, 36-37, 1854. 
T:eniodus Gervais, Zool. et Paléont. Frang., 2° éd., 31, 1859 (under Theridomys 
breviceps) . 
Type: Echimys curvistriatus Laizer & Parieu, from the Eocene of Auvergne, 
France. 
Name preoccupied by Teniodon Dunker, 1848, a genus of Mollusca. 
Extinct. 
Teniodus: tarvia, band; 6do0vs, tooth—in allusion to the character, ‘‘molaires 
comme formées de trois bandelettes.”’ 
[Tolmodus AwzanuriNo, 1891. Aves, 
Revista Argentina Hist. Nat., I, entr. 3a, 157, fig. 62, June 1, 1891; entr. 4a, 
255, Aug. 1, 1891. 
Type: Tolmodus inflatus Ameghino, from the Eocene of southern Patagonia. 
Extinct. Described as an Edentate (family Megalonychid:e), but subsequently 
shown to be an extinct bird. (1. c., p. 255.) 
Tolmodus: róAua, boldness, daring; ó90vc, tooth.] 
Tolypeutes IrtriGER, 1811. Edentata, Dasypodid:e. 
Prodromus Syst. Mamm. et Avium, 111, 1811. 
Species: Dasypus tricinctus Gmelin, from Brazil; and D. quadricinctus Gmelin, from 
South America. 
Tolypeutes: roAvz ev, to wind up, from roAvz?, ball—in allusion to the animal’s 
habit of rolling itself up into a ball as a means of defense. 
Tomarctus Corr, 1873. Fer:e, Mustelidze. 
Paleont. Bull., No. 16, pp. 2-3, Aug. 20, 1873; Ann. Rept. U. S. Geol. Surv. Terr., 
VII, for 1873, 519, 1874; Marrnew, Bull. Am. Mus. Nat. Hist., N. Y., XII, 68, 
1899 (locality ). 
Type: Tomarctus brevirostris Cope, from the Miocene (Loup Fork beds) of Logan 
and Weld counties, northeastern Colorado. 
Extinct. Based on ‘a mandibular. ramus supporting a perfect carnassial tooth 
and fangs of the following dentition: C. 1, M. 4.’ 
Tomarctus: Todos, cutting; @pKros, bear. 
