WEEKS.] 
PETROLOGY, AND MINERALOGY FOR 1892-1900. 
291 
Paleontology— Continued. 
Gt ru ra and species descri bed— Continued. 
Titanotherium montanum (Marsh), Osborn, 
4193. 
ophyras (Cope), Osborn, 4193. 
platyceras (Scott and Osborn), Osborn, 
4193. 
ramosum n. sp., Osborn, 4193. 
robustum (Marsh), osborn, 4193. 
robustum Marsh, Osborn and Wortmai > 
4193. 
selwynianus (Cope), Osborn, 4193. 
serotinum i Marsh i, Osborn, 4193. 
tichoceras (Scott and Osborn), Osborn, 
4193. 
torvum i Copo, Osborn, 4193. 
trigonoceras (Cope), Osborn, 4193. 
varians (Marsh), Osborn, 4193. 
Tbechomya, n. subgen., Clarke, 976. 
freitasi, n. sp., Clarke, 976. 
rathbuni, n. sp., Clarke, 976. 
Tomasina n. gen., Hall and Clarke, 2260. 
Tomiopsis, Cope, 1085. 
Tornatella bella (Conrad), Clarke, 906. 
nonnalis n. sp., Cooper, 1071. 
Tornatellaea bella Con., Harris, 2316. 
lata, Whitfield, 6097. 
Tornatellina ? isoclina n. sp., White, 6036. 
Tornatina canaliculata Say, Dall, 1259. 
erratica n. sp., Cooper, 1071. 
flscheri n. sp., Dall, 1269. 
incisula n. sp., Dall, 1269. 
leai Aid., Harris, 2316. 
myrmecoon n. sp., Dall, 1269. 
persiinilis n. sp., Dall, 1269. 
wetherelli Lea, Dall, 1259. 
wetherelli, Whitfield, <',iiu7. 
(Cylichnella) gal. hi, Dall, 1269. 
ovum-lacerti Guppy, Dall. 1269. 
Tornoeeras Hyall, Clarke, '.Kin. 
bicostatum Hall (sp. i, Clarke, 960. 
peracntum Hall (sp.), Clarke, 960. 
rhysmn 11. sp., < 'larke, 960. 
uniangulare Conrad (sp.), Clarke, 960. 
var. compressurp n. var., Clarke, 960. 
var. obesum n. var., Clarke. 960. 
Torosaurus, Case, 768. 
Torosaurus, Marsh, 3670, 3701. 
Tortaeella n. gen., White, 6036. 
haldemani White. Whit.'. 6036. 
Torynil'er criticus, Hall and Clarke, 2268. 
Toxaspis anguillulatus Cope, Cope, 1104. 
Toxochelys, Case, 770. 
brachyrhinus n. sp., Case, 770. 
latiremis, Case, 770. 
latiremis Cope, Wagner, :>773. 
serrifer, Case, 770. 
Toxorhynchus n. yen., Seudder, 4890. 
minusculus, Seudder. 4890. 
oculatus, Seudder, 4890. 
Toxylon longipetiolatum n. sp., Hollick, 2708. 
Trachydomia Meek and Worthen, Keyes, 3062. 
nodosum (Meek and Worthen), Keyes, 
3062. 
wheeleri (Swallow), Keyes, 3062. 
Traehypora E. and H., Grabau, 2086. 
Trachypora Milne-Edwards and Haime, 
Lambe, 3374. 
Paleontology— Continued. 
G< in r<i mill spirits <ii scribed— Continued. 
Traehypora elegantula Billings, Lambe, 3374. 
limbasa (Eaton), Grabau, 2086. 
Traehytriton atlanticum n. sp., Whitfield, 6097. 
holmdelense n. sp., Whitfield, 6097. 
multivaricosum n. sp., Whitfield, 6097. 
Traehyum vetustum Dawson, RauiT, 4548. 
Trapa americana n. sp., Knowlton, 3246. 
cuneata n. sp., Knowlton, 3264. 
microphylla Lx., Knowlton, 3255, 3264. 
(?) occidentalism sp., Knowlton, 3246. 
Tremanotus Hall, Ulrich and Scofield, 6541. 
Trematella, Simpson, 4983. 
Trematis Sharpe, Hall and Clarke, 2260. 
Trematis Sharpe, Winchell and Schuchert, 
6319. 
huronensis Billings?, Winchell and Schu- 
chert, 6319. 
ottawensds Hillings, Winchell and Schu- 
chert, 6319. 
Trematobolus n. gen., Matthew, 3749. 
insignis Matt.. Matthew, 3751, 3761. 
Trematoceras Hyatt, Hyatt, 2816. 
Trematoceras Whitfield, Whitfield, 6099. 
ohioense n. sp., Miller and Faber, 3993. 
ohioense, Whitfield, 6099. 
Trematofusus venustus n. sp., Whitfield, 6097. 
Trematonotus angustatus Hall, Whiteaves, 
6080. 
[rematopora, Simpson, 4983. 
Trematopora Hall, Ulrich, 5537. 
.' j -rii n iu . ii i;i Ulrich, Ulrich, r>r>:i7. 
var. ornata Ulrich, Ulrich, ">~>:',7. 
spinosa D. var. I'lrieh .V>:;7. 
Trematopygus crucifer i Morton >, Clark, 892. 
Treinatosaurus, Case, 767. 
Trematospira, Hall and Clarke, 2260, 2264. 
Trematospira Hall. Grabau, 2086. 
gibbosa, Grabau, 2086. 
Lmbricata? i Hall i, Keyes. 3062. 
multistriata Hall, Clarke, '.'71. 
tennesseensis, Hall and Clarke, 2268. 
(Billings)?, Girty, 2037. 
Tresus Gray, Dall, 1272. 
Tretulias buccatus n. gen. et sp., Cope, 1096. 
Triactoma, Matthew G. P., 3760. 
Triarthrus, Beecher, 362, 365, 368. 
becki, Beecher, 361, 366, 367. 
becki, Matthew. 3794. 
Triboloceras, Hyatt, 2816. 
digonum (M. and W.)?, Weller, 5994. 
Tricalcytes papyraceus n. sp., Newberry, 4080. 
papyraeeus Newb., Holliek, 2695, 2696. 
striatus n. sp., Newberry, 4080. 
Tricentes Cope, Matthew, 3801. 
bucculentus Cope, Osborn and Earle, 4191. 
crassicollidens Cope, Matthew, 3801. 
subtrigonus (Cope), Matthew, 3801. 
Triceratops, Marsh, 3701. 
ealicornis n. sp., Marsh, 3711. 
obtusus n. sp., Marsh, 3711. 
Trichocnemis aliena, Seudder, 4889. 
Trichospongia hystrix n. sp., Whiteaves, 6087. 
sericea Billings, Rauff, 4548. 
Trichotropis dalli n. sp., Whitfield, 6101. 
shumardi n. sp., Cragin, 1115. 
