Animals Before Man 



Mollusks, importance in defining 



strata, 52. 



Mosasaurs, 201-203. 

 distribution, 202. 

 Mugger, 135. 

 Multituberculata, 188. 

 Mylodon, 255, 257. 



Naosaurus, 132.* 



North American Continent, early, 



111. 

 Nyctodactylus, 210, 216. 



Odontopteryx, 181. 

 Olenellus, 67.* 

 Oligocene period, 236. 

 Ordovician brachiopods, 72. 



crinoids, 71. 



life, 70. 



period, 69-73. 



trilobiti's, 72. 

 Opossum, 191. 

 Ornithomimus, 168,* 169. 

 Ornithopoda, 149. 

 Ornithostoma, 210-214. 



skeleton, 211,* 212. 



spread of wings, 211. 



Paehyrhizodus, 197. 

 Palseaspis, 91. 

 Palieoctonus, 140. 

 Palseospiza, 233. 

 Palaeospondylus, 97.* 

 Paleozoic continent, 111. 



era, 82, 83. 

 Paradoxides, 67.* 

 Peccary, 256. 



Permian period, 129, 140-142. 

 Phenacodus, 222,* 224. 

 Plagiaulax, 189.* 

 Plants and climate, 19, 21. 

 Pleistocene period, 252. 

 Plesiosaurs, 203. 



Pliocene life, 249. 



period, 246. 

 Poebrothcrium, 242. 

 Polyzoa, 48.* 

 Porifera, 50. 



Predentata, characters, 150, 169. 

 Progress of life, 233, 234, 274-276. 

 Protoroliippus, 227, 244. 

 Protosphyrsena, 195.* 

 Protozoa, 51. 

 Pterichthys, 91, 95.* 

 Pterodactyls, 209-216. 



covering, 216. 



wing, 214. 



and birds, 215. 

 Pteropoda, 44. 



Kadiolaria, 51. 

 Radiolarian limestone, 51. 

 Reptiles, growth of, 135, 159. 

 Rhinoceros, Miocene, 243. 

 Rocks, classification, 53, 54, 55. 



deductions from, 24, 25, 59. 



formation, 56. 



Paleozoic, 83. 

 Rotifera, 47. 



Saber-toothed cats, 240, 245, 257.* 

 Salamander, Japanese, 127.* 

 Sauropoda, 148, 153. 



extinction, 163. 



habits, 153, 154. 



vertebrae, 155, 157.* 

 Scientific names, 163, 283. 



reasons for, 31-33. 

 Shark, Port Jackson, 105.* 



sleeper, 104.* 

 Sharks, Carboniferous, 100, 107. 



Cretaceous, 197. 



Devonian, 104. 



Eocene, 234. 



pavement-toothed, 105.* 



Permian, 140. 



290 



