South Dakota School of Mines 



149 



Page 



Mauvaises Terres 11, 124 



Medicine Root creek. ... 50, 62 



Meek, F. B 17 



Megacerops 99 



100, 101, 102, 124, 125 



Megalictiis 84, 130 



Merrill, G. P 141, 142 



Merychyus 13-2 



Merycochoerus zone. ... 26, 109 



Merycoidodon 108, 109, 128 



Mesas • 63 



Meisocyon 130 



iMes'ohippUiSi 32 



95, 96, 97, 124, 127, 129 



Mesoreodon 109, 110, 132 



Mesotapiru© 12 4, 127 



Metamynodon 89, 91, 127 



Metamynodon .sandstone.... 26 



38, 40, 48 



Metatheria 75 



Middle Miocene 2 6, 43-44 



Middle Oligocene 26 



70, 77, 79, 83, 86, 87, 91 



92, 93, 96, 105, 106, 107, 108 



109, 113, 115, 119, 126, 134 



Migration 68-70 



Mjinnekahta 21 



Miocene 11 



20, 2i2, 23, 24, 25, 27, 30 



41, 58, 89, 90, 94, 104, 109 



Miohippus 96, 12 9 



Missouri buttes 21, 3 2 



Moles 15, 8-5, 86 



fMollusks 5 6 



/Monroe Creek beds: 2 6, 41 



Montana .. 12, 2 7 



Moreau river 61 



Moropus 131 



Mountain sheep . . . 14 



Mounting of skeletons'. . 71, 72 



M'urldae . 88, 12 7 



Mussel shells 5 6 



Mustelidae 84, 130, 133 



Mylagaulldae 88, 133 



Mylagaulus 88, 133 



N 



Naming of extinct animals 72-76 



Nebraska... 12, 19, 20, 22, 25 



36, 37, 40, 44, 51, 56, 75 



81, 84, 87, 89, 95, 100, 103 



104, 109, 110, 113, 117, 121 



Page 



Nebraska beds 26, 44 



Neohipparion 9 6, 98, 13 3 



Newberry, J. S 13 6 



iNew Mexico . . . . . 12 



Newton, Henry 59 



NewtonHjenney survey 19 



Nigger Hill 21 



iNimravus ' 84, 130 



Niobrara river 22, 44, 51 



Nodular layer 38, 39, 110 



North Dakota 11, 12, 27, 3 0, 109 

 Nothocyon 80, 130 



Oelrichs 





66 



Oglala formation 





44 



O'Harra, C. 11, 



143, 



144 



Old Woman creek .... 





62 



Oligobunlis 



84, 



130 



Oligocene 11, 22, 23, 24 



, 25, 



29 



30, 32, 39, 57, 58, 



89, 



95 



106, 108, 109, 116, 



118, 



122 



Oligocene streams .... 





60 



Oregon ) 





1? 



Oreo don beds. . 25, 2 6, 



31, 



34 



38, 39, 46, 48, 56, 



64, 



126 



Oreodons 



39, 

 125, 



69 



108, 109, 110, 111, 



128 



Oreodontldae 



108 



-111 



125, 128, 



129, 



13'2 



Osborn, H. P 





19 



27, 28, 34, 41, 42 43 



, 44, 



54 



58, 69, 70, 74, 77, 89 



, 90, 



91 



92, 94, 95, 96, 98, 



99, 



100 



101 102, 107, 109, 



113, 



137 



138, 139, 140, 141, 



142, 



143 



Owen, D. D 17, 66 



67, 



135 



Owen Geological Survey 





17 



66, 



67, 



120 



Oxydactylimsi 115, 



117, 



132 



Palaeologus 88,12 7 



Paleotherium 16, 96, 99 



Palmer, T. S 124, 144 



Parahippus 9 6, 131 



Paratylopus 128 



Pass creek 62 



Passes 63 



Peabody Museum 94 



Peccaries 104, 106 



Penfield, S. L 45, 140 



