INDEX. 
Post-Pliocene period, 334. 
Post-Tertiary period, 286. 
Poteriocrinus, 175. 
Potsdam Sandstone, 79. 
Pre-Glacial deposits, 336. 
Prestwichia, 179; rotundata, 179. 
Primitia, 107; strangulata, 107. 
Primordial Trilobites, 85. 
Primordial zone, 79. 
Proboscidea, of the Miocene, 319, 322; of 
the Pliocene, 329, 330; of the Post- 
Pliocene, 357-359. 
Producta, 147, 184, 198; horrida, 1983 
longispina, 185; semireticulata, 185. 
Productella, 147, 184. 
Productide, 147, 211. 
Proeétus, 123. 
Prong-buck, 318. 
Protaster, 120; Sedqwickii, 121. 
Proteacee, 262, 308, 309. 
Proteus, 189. 
Protichnites, 87. 
Protocystites, 82. 
Protormis Glarisiensis, 297. 
Protorosaurus, 201, 202; Speneri, 201. 
Protospongia, 81; jfenestrata, 88. 
Prototax#tes, 118, 1388; Logani, 139. 
Psammobia, 292. 
Psammodus, 188. 
Psaronius, 136, 164. 
Pseudocrinus bifasciatus, 106. 
Psilophyton, 118, 137, 138; princeps, 138. 
Pteranodon, 247, 277; longiceps, 277. 
Pteraspis, 130, 152; Banksti, 1380. 
Pterichthys, 152; cornutus, 153. 
Pterinea, 128; subfaleata, 128. 
Pteroceras, 237, 271. 
Pterodactylus, 245, 277; crassirostris, 246 
Pterophyllum, 208, 230; Jaegeri, 209. 
Pteropoda, of the Cambrian, 88; of the 
Lower Silurian, 111; of the Upper 
Silurian, 129; of the Devonian, 148; 
of the Carboniferous, 186; of the Per 
mian, 199; of the Jurassic, 237. 
Pterosauria, 245; of the Jurassic, 245-248; 
of the Cretaceous, 277. 
Pterygotus Anglicus, 124, 125. 
Ptilodictya, 108, 125; acuta, 109; falci- 
Formis, 109; raripora, 126; Schaffer, 
109. 
Ptychoceras, 273; Emericianum, 274. 
Ptychodus, 275. 
Pupa vetusta, 186. 
Purbeck Beds, 228; Mammals of, 254. 
Purpuroidea, 237. 
Pycnodus, 275. 
Pyrula, 293. 
Quadrumana, of the Eocene, 305; of the 
Miocene, 322, 323; of the Pliocene, 331; 
of the Post-Pliocene, 361. 
Quadrupeds (see Mammalia). 
Quaternary period, 334. 
Quebec Group, 95, 96, 101. 
Quercus, 262. 
. Rabbits, 322. 
~ Rana, 313. 
Raptores, 297. 
Rasores, 297. 
Recent period, 286, 334. 
Receptaculites, 99. 
405 
Red clays, origin of, 35. 
Red Coral, 311. 
Red Crag, 324. 
Red Deer, 336, 354. 
Reindeer, 344, 345, 354, 355. 
Remopleurides, 188. 
Reptiles, 200; of the Permian, 200-202; 
of the Trias, 217-221; of the Jurassic, 
242-251; of the Cretaceous, 276-281; of 
the Eocene, 296, 297. 
Retepora, 108, 125, 145, 184, 198, 210; 
Ehrenbergi, 198; Phillipsi, 146. 
Retiolites, 119. 
Retzia, 127. 
Rhetic Beds, 204-206. 
Rhamphorhynehus, 247; Bucklandi, 248. 
Rhinoceride, 315. 
Rhinoceros Etruscus, 327, 328, 336, 353 ; 
leptorhinus, 328; megarhinus, 327-329, 
336, 353; tichorhinus, 353, 354. 
Rhinopora verrucosa, 126. 
Rhizodus, 188. 
Rhombus minimus, 295. 
Rhyncholites, 239. 
Rhynchonella, 110, 127, 147, 184, 234, 268, 
292; cuneata, 127; neglecta, 127; pleu- 
rodon, 185; varians, 235. 
Rhynchosaurus, 218; articeps, 218. 
Rice-shells, 293. 
Richmond Earth, 33, 307. 
Ringed Worms (see Annelida). 
River-gravels, high-level and low-level, 
340, 341. 
Robulina, 311. 
Rocks, definition of, 14; divisions of, 
14, 15; igneous, 14; aqueous, 15-18; 
mechanically-formed, 18-20; chemically- 
formed, 20; organically-formed, 20-37; 
arenaceous, 20; argillaceous, 20; cal- 
careous, 20-32; siliceous, 20, 32-34. 
Rodentia, of the Eocene, 305; of the 
Miocene, 322; of the Post-Pliocene, 561. 
Roebuck, 336, 354. 
Rostellaria, 237, 293. 
Rotalia, 22, 98, 171, 264; Boueana, 264. 
Rugose Corals, 104; of the Lower Silurian, 
104, 105; of the Upper Silurian, 119; 
of the Devonian, 141; of the Carbon- 
iferous, 172-174; of the Permian, 197; 
of the Upper Greensand, 266. 
Rupelian Clay, 307. 
Sabal major, 309. 
Sabre-toothed Tiger, 322, 331. 
Saccammina, 172. 
Saccosoma, 232. 
Salamanders, 189, 313. 
Salina Group, 117. 
Salix, 262; Meeki, 263. 
Salmonidce, 276. 
Sao hirsuta, 85. 
Sassafras cretacea, 263. 
Sauropterygia, 219. 
Scalaria, 271, 293; Grenlandica, 338. 
Scaphites, 272, 273; @qualis, 274. 
Schizodus, 198, 211. 
Schoharie Grit, 135, 137 
Scolecoderma, 82. 
Scoliostoma, 213. 
Scolithus, 82; Canadensis, 83. 
Scorpions of the Coal-measures, 181. 
Scorpion-shells, 271. 
