INDEX 



283 



Litolestes, 51, 225-228, 241, 243. 

 ignotus, 226, 227. 

 notissimus, 3o, 48, 227. 

 Litomvlus, 53, 226-228, 233, 241 seq., 

 243, 245 

 dissentaneus, 34, 48, 66, 226, 227, 

 241 seq. 

 Litotherium, 161. 



Livingston formation, 8, 9, 16, 19, 26, 27. 

 Lizards, 59. 

 Llovd, E. R., 11. 

 Lobdell, J. F., 11. 

 lobdelli, Psittacotherium, 170. 

 Longnian, H. A., 115. 

 Loxolophus, 171. 

 Lull, R. S., 4. 

 Lupton, C. T., 26, 58. 

 lydekkerianus, Mioclaenus, 225. 

 Magnolia, 58. 



mandibularis, Anisonchus, 262. 

 Maple, 58. 



Marsh, O. C, 71, 217, 265, 268. 

 Marsupials, 70-72, 115-117, 128. 

 Matthew, W. D., 2, 7, 52, 64, 65, 70, 72, 

 105, 107, 111, 115-120, 127-131, 140, 

 141, 146, 169-177, 180, 194, 207, 209, 

 216-219, 222, 223, 225-227, 230, 232, 

 233, 246, 257, 258, 262. 

 matthewi, Pronothodectes, 33, 47, 165 



seq. 

 maturus, Paromomvs, 33, 39, 47, 62, 66, 



147, 149 seq., 154-157. 

 mediaevus, Ptilodus, 52, 67, 70, 77-80, 



82, 83, 85, 96. 

 Meek, F. B., 7. 

 Megopterna, 135, 136. 



minuta, 9, 136-139. 

 Meinzer, O. E., 26. 

 Melville, Mont., 12, 14, 25, 40. 

 Melville formation, 15, 20, 21, 25, 27, 



28, 39, 55. 

 Meniscotheriidae, 216-218, 224. 

 Meniscotheriinae, 224. 

 Mesonvchidae, 34, 60, 61, 170, 216. 

 Metachriacus, 53, 66, 172, 173, 192-194, 

 196, 197 seq. 

 provocator, 37, 38, 47, 49, 66, 194, 



200 seq., 204. 

 punitor, 34, 47, 49, 62, 66, 194, 197 



seq., 201, 202, 204. 

 species undetermined, 37, 47. 

 Metatheria, 72. 



Miacidae,34,60,61, 170, 171, 182, 207 seq. 

 Miacinae, 207, 208. 

 Microclioerus, 144, 145. 

 Microcosmodon, 73, 81. 



conus, 83. 

 microlestes, Didymictis, 34, 37, 47, 62, 



209, 210 seq., 213. 

 Microsyopinae, 128, 129. 

 Microsvops, 127-130. 

 Mimotricentes, 52, 53, 173, 192, 193, 

 203 seq. 

 angustidens, 34, 36, 37, 47-49, 52, 

 194, 197, 205 seq. 



Mimotricentes latidens, 5, 34, 38, 47, 194, 

 205, 206. 

 species undetermined, 36, 47, 48, 

 207. 

 minor, Elpidophorus, 31, 33, 47, 49, 50, 

 133 seq. 

 Euprotogonia, 247, 253. 

 Palaechthon, 159. 

 Palenochtha, 33, 47, 159 seq. 

 Tetraclaenodon, 249. 

 minuta, Megopterna, 9, 136-139. 

 Mioclaenidae, 217, 218, 225, 231, 232, 



257. 

 Mioclaeninae, 218, 223, 225, 232 seq., 



257, 258. 

 Mioclaenus, 5, 216, 217, 224-228, 230- 

 233. 

 acolytus, 225. 

 ferox, 224. 

 fioverianus, 246. 

 lemuroides, 225. 

 lydekkerianus, 225. 

 opisthacus, 225. 

 turgidunculus, 225, 232. 

 turgidus, 224-227, 230, 232. 

 Mixoclaenus, 173, 255, 257, 258. 



encinensis, 257. 

 Mixodectes, 5, 53, 70, 127-131, 133. 

 Mixodectidae, 33, 60, 61, 106, 127 seq. 

 Mixodectinae, 128, 129. 

 molestus, Eucosmodon, 83, 104. 

 Monotremes, 71, 72, 92. 

 montanensis, Claenodon, 34, 38, 47, 175, 

 176, 181 seq., 187-189. 

 Gidleyina, 5, 41, 48, 50, 251 seq., 



253, 254. 

 Mvrmecoboides, 33, 47, 117 seq. 

 Neoclaenodon, 174-176, 181, 188. 

 montanus, Coriphagus, 9, 34, 48, 255, 

 257, 259 seq. 

 Deuterogonodon, 5, 37, 47, 49, 191, 



194. 

 Ptilodus, 9, 33, 37, 38, 46, 52, 62, 

 67, 70, 74-80, 82, 83, 84 seq., 

 95-97. 

 Mowry formation, 15. 

 multifragum, Psittacotherium, 34, 47, 



49, 53, 68, 169 seq. 

 Multituberculata, 2, 33, 60, 61, 70 seq. 

 Multituberculate undetermined, 42. 

 munusculum, Leptacodon, 33, 46, 114 



seq. 

 musculus, Ectypodus, 77, 79, 82, 83, 99, 



101, 102. 

 Musselshell River, Mont., 12, 14. 

 mustelinus, Ictidopappus, 34, 47, 214 



seq. 

 Myrmecobiidae, 115. 

 Myrmecobius, 115, 116. 

 MyrmecoVioides, 10, 52, 106, 111, 112, 

 115 seq. 

 montanensis, 33, 47, 117 seq. 

 Nannopithex, 145. 

 nassau, Aspideretes, 59. 

 navajovius, Dissacus, 216. 

 nebrascense whitei, CamjDeloma, 17. 



