308 INDEX 



Pages 



Polypora fastuosa Foerste 55, 66, 69, 71, 73, 76, 77, 86, 126, 128, 139, 161 



Polypora sp 64, 65, 86, 139, 161 



Portage County 



Lower Mercer limestone in 81 



Posidonia acosta (Cox)_._ 67,68,87,135, 138, 142,213 



Posidonia girtyi n. sp 32,36,53, 87, 142,214 



Posidonia sp 60,65,74,76,87,142,217 



Posidonia vintonensis n. sp 53, 87, 142, 216 



Posidonomya beecheri Bronn 215 



Posidonomya pertenuis Beede " 215 



Pottsville formation 



Coals of __ 10 



Economic value of 11 



Limestones of 10 



Origin of 11 



Outcrop of in Ohio 8 



Rocks of 10 



Section of 12, 13 



Thickness of 10 



Unconformity at base of 9 



Poverty Run limestone (See Lowellville) 



Price, W. A., reference to 1176, 261, 266 



Prismopora sereata (Meek) 55, 62, 66, 69, 71, 73, 75, 77, 86, 98, 104, 105, 106, 



108, 114/126, 128, 132, 133, 135, 136, 137, 139, 165 



Productus cora d'Orbigny 31, 32, 34, 35, 40, 41, 42, 43, 45, 50, 51, 52, 53, 



55, 57, 59, 60, 61, 62, 64, 65, 67, 69, 71, 73, 76, 



77, 78, 79, 80, 82, 83, 84., 85, 87, 90, 97, 98, 101, 



102, 104, 105, 106, 107, 108, 110, 111, 115, 121, 

 123, 126, 128, 132, 133, 136, 137, 140, 180 



Productus longispinus Sowerby 185 



Productus morrowensis Mather : , 182 



Productus semireticulatus (Martin) 32, 34, 35, 40, 41, 42, 43, 45, 51, 52, 53, 55, 58, 



59, 60, 61, 62, 63, 64, 65, 67, 68, 69, 71, 73, 77, 



78, 80, 82, 83, 84, 85, 87, 96, 97, 99, 100, 102, 



103, 105, 106, 107, 108,. 109, 110, 111, 112, 113, 

 115, 121, 122, 123, 124, 126, 128, 132, 133, 134, 



135, 136, 137, 140, 181 



Productus semireticulatus (Martin) var.40, 41, 43, 45, 50, 55, 87, 97, 98, 101, 104, 115, 140, 181 



Prothyris elegans Meek 73, 87, 110, 115, 141, 195 



Pseudomonotis radialis Phillips 213 



Pseudomonotis sp 55,67,87, 142,212 



Pseudorthoceras knoxense (McChesney).31, 33, 34, 35, 36, 41, 43, 46, 52, 53, 56, 60, 63, 



68, 70, 72, 74, 76, 78, 81, 89, 119, 121, 122, 124, 



125, 126, 129, 144, 268 



Pteria longa (Geinitz) 212 



Pteria ohioense (Herrick) 50, 55, 67, 70, 71, 74, 76, 87, 119, 128, 133, 135, 



138, 142, 212 

 Pustula nebraskensis (Owen) 31, 35, 40, 41, 43, 44, 45, 50, 51, 52, 53, 55, 57, 



58, 59, 60, 61, 62, 63, 64, 65, 67, 68, 69, 71, 73, 



76, 77, 80, 82, 83, 84, 85, 87, 97, 98, 101, 103, 



104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 

 115, 119, 121, 122, 123, 126, 128, 132, 133, 135, 



136, 137, 140, 182 



