INDEX 307 



s 



Perry Count}' Pages 



Fossils from 55-56, 97, 98, 99 



Lower Mercer member in 54-56, 147 



McArthur limestone 126-127 



Upper Mercer member 97-99, 148 



Phanerotrema grayvillense (Norwood and Pratten) 56, 80, 88, 119, 124, 129, 143, 254 



Pharkidonotus percarinatus (Conrad) __ 50, 56, 58, 63, 64, 66, 68, 70, 72, 74, 76, 78, 80, 



88, 119, 121, 122, 124, 125, 126, 129, 143, 248 

 Pharkidonotus percarinatus var. tricarinatus (Shumard) _ _56, 60, 66, 88, 124, 129, 143, 248 



Phillipsia major Shumard 273 



Phillipsia missouriensis Shumard 273 



Phillipsia sangamonensis Meek and Worthen 56, 68, 72, 75, 78, 89, 144, 272 



Phillipsia trinudeata Herrick 18, 20, 21, 65, 68, 70, 72, 75, 76, 78, 89, 106, 115. 



133, 135, 138, 144, 274 



Phylum Arthropoda , 272 



Phylum Coelenterata 154 



Phylum Echinodermata 154 



Phylum Mollusca 193 



Phylum Molluscoidea 156 



Phylum Protozoa 151 



Phylum Vermes 156 



Phylum Vertebrata 274 



Pinnatopora sp 107, 114, 139, 162 



Pinnatopora ivhitii Foerste 62, 66, 69, 73, 75, 86, 139, 162 



Placunopsis carbonaria Meek and Worthen 217 



Placunopsis recticardinalis Meek 74, 88, 143, 233 



Plagioglypta canna (White) 246 



Plagioglypta meekiana (Geinitz) 67, 80, 88, 143, 245 



Plagioglypta prosseri n. sp _ 56, 70, 72, 88, 1 19, 124, 129, 143, 245 



Plagiostoma 214 



Plantae 22,38,45,53,61,65,75,86, 113, 114,139, 151 



Platycerasf peoriense (McChesney) 257 



PleurophoreUa costata (Meek and Worthen) 63, 67, 70, 80, 88, 125, 126, 129, 143, 234 



PleurophoreUa geinitzi (Meek) _ 70, 72, 76, 88, 143, 235 



PleurophoreUa sesquiplicata Price 53, 88, 143, 235 



Pleurophorus immaturus Herrick 56, 63, 66, 67, 70, 72, 74, 76, 77, 88, 119, 121, 



122, 123, 125, 129, 133, 138, 143, 236 



Pleurophorus oblongus Meek 18, 20, 67, 76, 78, 88, 1 19, 123, 129, 143, 238 



Pleurophorus occidentalis Meek and Hayden 237 



Pleurophorus spinulosa n. sp. 72,88, 143,239 



Pleurophorus subcostatus Meek and Worthen 237 



Pleurophorus tropidophorus Meek 31, 36, 56, 58, 67, 68, 70, 72, 74, 76, 78, 80, 88, 



106, 115, 119, 121, 122, 123, 125, 129, 133, 138, 

 143, 240 



Pleurotomariidae d'Orbigny 251 



Pleurotomaria broadheadi White 74,88,143,251 



Pleurotomaria carbonaria Norwood and Pratten 50, 74, 80, 88, 126, 129, 143, 252 



Pleurotomaria coxanus Meek and Worthen 74, 88, 143, 252 



Pleurotomaria gurleyi Meek and Worthen 253 



Pleurotomaria illinoisensis Worthen 255 



Pleurotomaria newportensis White. 58, 78, 80, 88, 124, 129, 143, 253 



Pleurotomaria ornatiformis n. sp 16, 18, 20, 68, 88, 143, 253 



Pleurotomaria sp 40,46,90,99,115,119,129,143,254 



Pleurotomaria undetermined- _. 16, 18, 20 



