INDEX. 



129 



rage. 



Ludicn 6tage, homotaxis and fauna of. 51,57. 60-61 



Lutetien etage, homotaxis and fauna of 43-53 



Lutra 80,85,118 



pristina 116 



Lynx 89,90 



M. 



Macha?rodus 118 



august us 116 



catocopis 116 



crassidens 116 



maximus 118 



MachEcrodontinai 60 , 6 1 , 63 , 8 1 , 86 , 87 , 89 , 90 



McMastcr, J. B., paper by 12 



Macrotherium 69 



Madison Valley, Mont., fossils of 115-118 



Mammalian life, phases of 20 



Manteoceras 53,102 



manteoceras 98 



ultimus 99 



sp. 



Marsh, O. C, papers by 10 



Marsilea 78 



Marsupialia 33, 55, 59, 61. 103, 105, 110 



Martin Canyon, Colo., fauna of 106-109,112-114 



Mascall, Oreg., fauna of 114, 115 



Mascall formation, homotaxis and fauna of. 22, 64, 78 



homotaxis of, figure showing 23 



Mastodon 69,83,87,89 



americanus 86 



mirificus 83,84 



Mastodontida? 81 



Matthew, W. D.. correlation by 8,29.69 



on Brule clay 62,63 



on faunal persistence 42 



on Great Plains deposition 27 



on Miacidffi 52 



on Rosebud beds 75 



papers by 11,15,17 



Matthew, W. D., and Gidley, J- W., paper 



by 15 



Meek, F. B., and Hayden, F. V., on Loup 



Fork beds 83 



Megacerops Ill 



angustigenis 104 



bicomutus 104 



brachycephalus 104 



coloradensis 104 



dispar 104 



marsh i 104 



robust us 104 



selwjTiianus 104 



tichoceras 104 



Megalictis 75,118 



fcrox 112 



Megalonychida" 114, 119, 120 



Megalonyx 82,83,87,88,89 



Icptostoma 120 



Meniscomys 68, 75, 110 



sp 112 



Meniscotheriids? 40,94,102 



Meniscotherium 102 



chamense 94 



tapiacitis 94 



terra'rubrte 94 



56092— Bull. 361—09 9 



rajro. 



Mephitis 89,90 



Mercer, II. C, paper by 18 



Merriam, J. C, on volcanic ash 25 



papers by 15, 18, 19 



Merychippus 78, 79, 80, 119 



calamarius 117 



campestris 115 



insignis... 117 



isonesus 115 



labrosus 115 



paniensis 115 



sejunctus 115 



severs us 11.) 



sphenodus 115 



Merj'chippus zone, homotaxis of 64 



Merychyus 69, 70, 72, 74, 75, 78, 80, 81, 1 13, 119 



elegans 113,117 



harrisonensis . . . .• 113 



major 117 



medius 117 



pariogonus 115 



smithi.. 115 



sp . 115,117 



Merycochcerus 69, 70, 72, 74, 75, 78, 80, 81 



cenopus 117 



proprius 115 



rustic us 115 



sp 113,117 



Merycochcerus zone, homotaxis of, figures 



showing 23, 64, 65, 70, 72, 82 



Merj-codontina; 77, 80, 81, 80, 114, 115, 118, 120 



Merycodus 77, 80, 81, 120 



agilis.. 118 



furcatus 118 



necatus 118 



osbomi 115 



ramosus.. 118 



tehuanus 118 



Merycoides 119 



cursor 113 



Merycoidodon. See Oreodon. 



Mesatirhinus . 51 



megarhinus 52,53,54 



Mesocyon 68,75,110,118 



brachyops 107. 



coryphaeus 106 



drummondanus 107 



josephi 106 



robustus 112 



sp 112 



Mesodectes 110 



caniculus 105 



Mesogaulus 119 



ballensis ' 114 



Mesohippus Ill 



acutidens 68,108 



assiniboiensis 104 



bairdii 106 



brachylophus 108 



brachystylus 104,108 



celer 104 



equiceps 108 



eulophus 106 



exoletus 106 



hypostylus 104 



