290 INDEX TO NORTH AMERICAN GEOLOGY, PALEONTOLOGY, [bull. 189. 
Paleontology— Continued. 
Genera and species described — Continued. 
Thalamocrinus cylindricus n. sp.j Miller and 
Gurley, 3998. 
ovatus n. sp., Miller and Gurley, 3998. 
Thaleops ovata Conrad, 1843, Clarke, 952. 
Thamniscus, Simpson, 4983. 
furcillatus Ulrich, Keyes, 3062. 
Thamnocella n. gen., Simpson, 4983. 
Thamnodictya Hall, Hall and Clarke, 2269, 
2271. 
newberryi Hall, Hall and Clarke, 2269, 
2271. 
ortoni n. sp., Hall and Clarke, 2269, 2271. 
Thamnograptus affinis nom. prov. Whiteaves, 
6087. 
barrandii Hall, Gurley, 2217. 
Thai nnotrypa, Simpson, 4983. 
Thecachampsa marylandica n. sp., Clark, 
904, 906. 
Thecidea Def ranee, Hall and Clarke, 2264. 
(Lacazella Munier-Chalmas), Hall and 
Clarke, 2264. 
(Thecidella Munier-Chalmas), Hall and 
Clarke, 2264. 
(Thecidiopsis Munier-Chalmas), Hall and 
Clarke, 2264. 
Thecocyrtella Bittner, Hall and Clarke, 2264. 
Thecodonta A. Adams, Dall, 1281. 
(Dicranodesma) calveatersis Glenn, 
Dall, 1281. 
Thecospira Zugmayer, Hall and Clarke, 2264. 
Theoeampe, Matthew, G. F., 3760. 
Thetis sp., Harris, 2315. 
Thinnfeldia lanceolatan. sp., Knowlton, 3222. 
lesquereuxiana Heer, Hollick, 2696. 
lesquereuxiana Heer, Newberry, 4080, 
montana Kn., Knowlton, 3264. 
polymorpha (Lx.), Knowlton, 3222. 
? reticulata Fontaine, n. sp., Ward, 5857. 
Thinohyus nanus n. sp., Marsh, 3690. 
robustus n. sp., Marsh, 3682. 
Thoracodus emydinus Cope, Case, 773. 
Thracia ? montanaensis (Meek)?, Stanton, 
5206. 
weedi n. sp., Stanton, 5206. 
. Thrincoceras, Hyatt, 2819. 
depressum n. sp., Hyatt, 2816. 
kentuckiense n. sp., Hyatt, 2816. 
Thrysopteris brevifolia Fontaine, 1850. 
brevipennis Fontaine ?, Fontaine, 1850. 
crassinervis Fontaine, Fontaine, 1850. 
dentifolia n. sp., Fontaine, 1850. 
elliptica Fontaine, 1850. 
meekiana Heer?, Ward, 5857. 
pecopteroides Fontaine, Fontaine, 1850. 
pinnatifida Fontaine?, Fontaine, 1850. 
Thuja interrupta Newb., Newberry, 4083. 
Thuya cretacea (Heer) Newb., Newberry, 
4080. 
Thuyites meriani Heer, Newberry, 4080. 
Thysanocrinus Hall, Weller, 6002. 
egani Miller, Weller, 6002. 
milliganae n. sp., Miller and Gurley, 3999. 
oceidentalis Hall, Weller, 6002. 
pentangularis Hall, Weller, 6002. 
Thysanodietya n. gen., Hall and Clarke, 2269, 
2270, 2271. 
Paleontology— Continued. 
Genera and species described — Continued. 
Thysanodietya apleta n. sp., Hall and Clarke, 
2269, 2270. 
edwin-halli nom. nov., Hall and Clarke, 
2269, 2270. 
hermenia n. sp., Hall and Clarke, 2269, 
2270. 
johnstoni n. sp., Hall and Clarke, 2269, 
2270. 
pcecilus n. sp., Hall and Clarke, 2269, 2270. 
quasillum n. sp., Hall and Clarke, 2269, 
2270. 
randalli Hall (sp.), Hall and Clarke, 2269, 
2270. 
rudis Hall (sp.), Hall and Clarke, 2269, 
2270. 
saccusn. sp., Hall and Clarke, 2269, 2270. 
scyphina n. sp., Hall and Clarke, 2269, 2270. 
turricula n. sp., Hall and Clarke, 2269, 
2270. 
Tiaporus n. gen., Cope, 1080. 
Tillsephyllum dubium n. sp., Newberry, 4080. 
Tillotherium fodiens Marsh, Osborn, 4193a. 
Tipula Linne, Scudder, 4894. 
carolinse, Scudder, 4894. 
clauda, Scudder, 4894. 
evanitura, Scudder, 4894. 
florissanta, Scudder, 4894. 
heilprini, Scudder, 4894. 
internecata, Scudder, 4894. 
lapillescens, Scudder, 4894. 
lethsea, Scudder, 4894. 
limi, Scudder, 4894. 
maclurei, Scudder, 4894. 
magnifica, Scudder, 4894. 
reviviflcata, Scudder, 4894. 
rigens, Scudder, 4894. 
spoliata, Scudder, 4894. 
subterjacens, Scudder, 4894. 
tartari, Scudder, 4894. 
Tipulidea n. gen., Scudder, 4894. 
bilineata, Scudder, 4894. 
consumpta, Scudder, 4894. 
picta, Scudder, 4894. 
reliquida:, Scudder, 489*4. 
Titanichthys, Claypole, 84. 
agassizii Newberry, Eastman, 1602. 
attenuatus n. sp., Claypole, 990. 
brevis n. sp., Claypole, 1001. 
clarkii Newberry, Eastman, 1602. 
?Titanophyllum brittsii n. sp., White, 6050. 
Titanotherium, Case, 769. 
acer (Cope), Osborn, 4193. 
altirostris (Cope) , Osborn, 4193. 
amplum (Marsh), Osborn, 4193. 
angustigenis (Cope), Osborn, 4193. 
avum (Marsh), Osborn, 4193. 
bucco (Cope), Osborn, 4193. 
coloradense Leidy, Osborn, 4193. 
curtum (Marsh), Osborn, 4193. 
dolichoceras (Scott and Osborn), Osborn, 
4193. 
elatum (Marsh), Osborn, 4193. 
gig?'' (Marsh), Osborn, 4193. 
heloceras (Cope), Osborn, 4193. 
ingens (Marsh), Osborn, 4193. 
