NEW YORK STATE MUSEUM 



Ostracoda, 2i8 8 -20 8 . 

 Oswego sandstone, 33 s , Sy". 



Paleontologic history of region, 



86 s - 1 2Q 5 . 

 Paleontology, i3Q 1 -46°. 

 Paleozoic coastal plain, development 



of. 3^-37 7 - 

 Paleozoic rock system, 18". 

 Paleozoic subdivisions, table, 20-21. 

 Paludina limosa, 241 2 . 



obtusa, 242 s . 

 Pelecypoda, 102 4 , 105 3 , 2o6'-io\ 245 s - 



S2 3 . 



Peneplain, 36 s , 42". 

 Pentamerus, i90°-9i a . 



fornicatus, 191 7 . 



oblongus, i90 s -9i 5 . 

 Phacops limulurus, 224 1 . 

 Phasganocaris? deweyi, 227 s -28 3 . 

 Pholidops, 179 1 . 



squamiformis, 179 3 . 

 Phyllocarida, 226 7 -28 3 . 

 Phylloporina, i68 5 -69 3 . 



asperato-striata, 169'. 

 Physa, 244 s -45 3 - 



heterostropha, 245 x . 

 Physical geography of Niagara re- 

 gion, 25 1 -54' J . 

 Pilsbry, H. A., acknowledgments 



to, 238°. 

 Pisidiurri, 247 1 -48". 



abditum, 247 s . 



compressum, 247°. 



scutellatum, 248". 



ultramontanum, 248 1 . 



virginicum, 247 3 . 

 Pitt, W. H., cited, 255°. 

 Planorbis, 245 s . 



bicarinatus, 245*. 



parvus, 245 s . 

 Plants, 11 1 , i30"-32°. 

 Platyceras, 103 7 , 21 1 1 . 



angulatum, 21 1 5 . 



niagarense, 211 2 . 

 Platystoma, 211 s . 



niagarensis, 101 . 

 Plectambonites, 182--83 7 . 



sericea, 183 s . 



transversalis, 101 4 , 183 4 . 



Pleurocera, 239 s . 



subulare, 239°. 

 Pleurotomaria, 2i2 5 -i3 7 . 



littorea, 212 7 . 



pervetusta, 213 1 . 

 Pohlman, Julius, cited, 257°, 30 9 , 7f, 



79 3 , 83°, 115 9 ; mentioned, 18 s . 

 Polydilasma turbinatum, 137 7 . 

 Polypora, 172 1 . 



incepta, 172 2 . 

 Pomatiopsis, 242' 1 . 



lapidaria, 74°, 242 s . 

 Porter, P. A., cited, 7 ; quoted, 10*. 

 Post-pliocene fossils of Niagara river 



gravels, 238-52. 

 Potsdam formation, facies, 32'. 

 Potsdam sandstone, 32 s . 

 Pre-Cambric rocks, 18°, 31 7 . 

 Pre-Cambric North American con- 

 tinent, visible remnants, 26". 

 Preglacial Genesee river, 46 7 -47°. 

 Preglacial Saginaw river, 46 s . 

 Prospect park, gravel beds, 67°, 238 s . 

 Prospect point, views from, 9 . 

 Pterinea, 207 4 . 



emacerata, 96", 105' 1 , 207 7 . 

 Pterygotus, 23 r. 



acuticaudatus, 23 1 5 . 



buffaloensis, 23 1 5 . 



cobbi, 231 7 . 



cummingsi, 231'. 



globicaudatus, 231 s . 



macrophthalmus, 231". 



Quadrula, 25i s -52°. 



coccinea, 252 s . 



solida, 25i -S2 2 . 

 Queen Victoria park, gravel de- 

 posits, 68 3 , 238 s . 

 Queenston hights, 15 4 . 

 Quereau, E. C, cited, 257 s . 



Rapids above falls, view of, 12 2 . 

 Recession of falls, 22 s -23 2 . 

 Retepora asperatostriata, 169 1 . 



diffusa, i( 



70". 



Rhinopora, i74 8 -75*. 



tuberculosa, 175 2 

 Rhipidomella, 188 1 . 



circulus, i88 7 -89 2 . 



hybrida, 188 4 . 



