Index 



Eurypterids, 45, 76 * 77. 

 Extiuetiou of auimiils, 271, 272. 



Fins, origin of, 101.* 

 Fisli beds, Carboniferous, 92, 93. 

 Fishes, early, 85, 89, 97. 

 Flying animals, 213. 

 Footprints. See Tracks. 

 Foraminifera, 51. 

 Fossil, definition of, 8. 

 Fossils, deductions from, 19, 20, 22, 

 23. 



Gastropoda, 44. 

 Generalized animals, 221. 

 Geological time, 56. 

 Giraffe camel, 24i. 

 Glyptodon, 249. 

 Graptolites, 71.* 

 Green Eiver shales, 202. 

 Ground sloth, 249, 253, 254, 255, 

 257. 



Hesperornis, 181,* 182, 183. 

 Horse, 249, 269. 



Eocene, 227. 



Miocene, 242, 244. 



Pleistocene, 258, 259. 



Ichthyosaurs, 136, 137, 138, 147. 



appearance, 137. 



young, 147. 

 Ichthyornis, 184, 185. 

 Impressions of animals, 13. 

 Insects, fossil, 12. 



localities for, 12. 

 Invertebrates, 41. 



Jellyfish, fossil, 11, 63. 

 Jurassic life, 176. 



mammals, 187-192. 



period, 175. 



plants, 172. 



King-crab, 63, 64.* 



Labyriuthodonta. See Stegoceph- 



ala, 118. 

 Labyrinthodont, restoration, 125. 



habits, 125. 

 Lamellibranchiata, 44. 

 Lampreys, 38, 39,* 85, 96. 

 Lancelet, 37. 

 Laosaurus, 172. 

 Leather-turtle, 198-200.* 

 Lepidodendron, 122, 142. 

 Lepidophytes, 122. 

 Life, early, 58, 59, 60, 61, 62. 



progress of. See Progress of 



life. 

 Llama, 244. 



ancestors, 242, 

 Lophiomys, 119. 

 Lung-fishes, 98,* 99. 



Mammals, Cretaceous, 192, 217. 



earliest, 142, 185. 



Eocene, 220-232. 



Jurassic, 187-190. 



Triassic, 185-187. 

 Mammoth, 259, 260, 263,* 264, 270. 



northern, 264-267. 



range, 264. 



southern, 247, 248, 267. 

 Man, appearance, 273. 

 Mastodon, 271, 272. 



americanus, 264. 



early, 246. 



obscurus, 240. 



range, 265. 

 Megalonyx, 255. 

 Megalosaurus, 168. 

 Megatherium, 253-255. 

 Mesohippus, 242. 

 Metopias, 124. 

 Microconodon, 186. 

 Miocene period, 243. 



289 



