INDEX. 



427 



Stroinntopora, 99,100, 120, 141; rugosa, 99; 



(uberculata, 142. 

 Stroiubodes, 121; pentagonus, 105. 



trombus, 280. 

 Strophalosia, 202. 

 Mrophodus, 262. 

 Strophomena, IIP, 111, 127, 149, 188 ; o#er- 



nato, 111; ddtoidea, 110; filitexta, 111; 



rhomboidalis, 150, }5'2\subplana, 129. 

 Sub-Appennine Beds, 337. 

 Sub-Carboniferous rocks, 161, 164. 

 Succession of life upon the globe, 



381-388. 



S-uda, 313, 328. 340. 

 Sulphate of lime, 23. 

 Sus Erymanthius, 328; scrofa, 367. 

 Synastrcsa, 215. 

 Synhelia Sharpeana, 274. 

 Synocladia, 202; virgulacea, 202. 

 Syringopora, 121, 1/4; ramulosa, 178. 



Tabulate Corals, 106; of the Lower 

 Silurian, 106; of the Upper Silu- 

 rian, 121; of the Devonian, 141; of 

 the Carboniferous, 176; of the Per- 

 mian, 201. 



Talpa Europvea, 349. 



Tapiridx, 310. 



Tapirs, 310. 



Tapirus Arvernensis, 3 10. 



Taxocrimis tuber culatus, 124. 



Taxodium, 270, 319, 321. 



Teleosaurus, 260. 



Teleostean Fishes, 152; of the Cre- 

 taceous, 283. 



Telerpeton Elginense, 224. 



Tettina proximo, 351. 



Tentaculites, 131, 151; ornatus, 131. 



Terebra, 303. 



Terebratella, 276; Astieriana, 276. 



Terebratula, 188, 241; digona, 242: efon- 

 #ota, 202; hastata 186; quadrifida, 242; 

 sphoRroidalis, '242. 



Terebratulina, 276; caput-serpentis, 276; 

 sonata, 276. 



Termites, 322. 



Terrapins, 289, 306. 



Tertiary period, 45, 294-296. 



Tertiary rocks, classification of, 295- 

 296. 



Testudinidx, 324. 



Tetrabranchiate Cephalopoda, 114; 

 of the Cambrian, 89; of the Lower 

 Silurian. 113-116; of the Upper Silu- 

 rian, 132; of the Devonian, 151 ; of 

 the Carboniferous, 189, 190; of the 

 Permian, 203; of the Trias, 217; of 

 the Jurassic, 244, 246; of the Cre- 

 taceous, 280-283; of the Eocene, 

 304; of the Miocene, 322. 



Textularia, 23, 272, 322; Meyeriana, 322. 



Thanet Sands 297, 298. 



TVca, 89. 112,131. 



Theca Damdii, 88. 



Thecidium, 219. 



Thecodont Reptiles, 224. 



Thecodontosaurus, 206, 224; antiquus, 

 225. 



Thecosmilia annulai is, 238. 



Thelodus, 132. 



Theriodont Reptiles, 206, 227. 



Thylacoleo, 362. 



Tile-stones, 118. 



Titanotherium, 327. 



Toothed Birds, 289-292. 



Tortoises, 207, 306. 



Tragoceras, 329. 



Travertine, 22, 



Tree-Ferns, of the Devonian, 138; of 

 the Coal-measures, 169. 



Tremadoc Slates, 78-79. 



Trematis, 112. 



Trenton Limestone, 96, 97. 



Triarthrus Beckii, 108. 



Triassic period, 209; rocks of, in 

 Britain, 209; in Germany. 209; in 

 the Austrian Alps, 210; in North 

 America, 210; life of, 211-231. 



Triconodon, 262. 



Trigonia, 24 ', 262, 277. 



Trigoniadif, 203, 217. 



Trigonocarpum, 173 ; ovatum, 173. 



Trilobites, H4-88; of the Cambrian, 

 86,88; of the Lower Silurian, 108, 

 109; of the Upper Silurian. 125, 126; 

 of the Devonian. 146,147; of the 

 Carboniferous, 183. 



Trimerellidse, 129. 



Trinucleus, 110 ; concentricus, 108. 



Trionycidse, 306. 



Triton, 803. 



Trochocyathus, 274. 



Trochonema, 131. 



Trogontherium, 375 ; Cuvieri, 349, 375. 



Trumpet-shells, 303. 



Tulip-tree, 270, 319. 



Turbinolia sulcata, 302. 



Turbinolidx, 302. 



Turrilites, 281, 282 ; catenulatus, 281. 



Turritella, 279, 303. 



Turtles, 207, 259, 281, 306. 



Typhis tubifer, 803. 



UUmania selaginoides, 201. 



Unconformability of strata, 50. 



Under-clay of coal, 165. 



Ungulata, of the Eocene, 310-313: of 

 the Miocene, 326-330; of the Plio- 

 cene, 339-340 ; of the Post- Pliocene, 

 366-367. 



Uniformity, doctrine of, 5-7. 



Unio, 277. 



Univalves (see Gasteropoda). 



Upper Cambrian, 77-79; Chalk, 266; 

 Cretaceous, 264. 268; Devonian, 137; 

 Eocene, 296, 298; Greensand, 2ftO; 

 Helderberg, 1*7; Laurentian, 66; 

 Llandovery, 117; Ludlow rock, 117; 

 Miocene, 316; Oolites, 234; Silurian 

 period, 116; rocks of, in Britain, 

 117, 118; in North America, 118-120, 

 life of, 120-134. 



Ursus arctos, 373; Arvernensis, 341; fe- 

 rox, 373; speloea, 3'<3. 



Ursus, 349, 369. 



\ ailey- gravels, high-level and iow- 



level, 352-354. 

 Vanessa Pluso, 322. 

 Varanidtz, 206. 

 Vegetation (see Plants). 

 Vcntriculites, 272, 273: simplex, 273. 

 Venus's Flower-basket, 273. 

 Vermilia, 201. 



