664 



STRATIGEAPHICAL GEOLOGY 



flacodus, 353 

 Placoparia, 110, 145 

 Placoparia Beds, 146 

 Placocystuf, 156, 160 

 Plagiaulax, 434 

 Plagiozamites, 315, 325 

 Pla'isantian stage, 587, 605, 



606 



Planera, 574 

 Planorbis, 4 <9, 559 

 Plant-assemblages, 322 

 Plasmopora, 195 

 Platanus, 464, 527 

 Plateau gravels, 640 

 Plattenkalk, 432 

 Platyceras, 158, 196 

 Platychisma. 158 

 Platycrinus', 247, 248 

 Platysomws, 250, 292 

 Pleistocene Series, 526, 611, 



637 



Plesiosaurus, 386, 392 

 Plethodus, 466 

 Pleuracanthus, 292 

 Pleurodictywm, 195 

 Pleurograptus, 111, 115 

 Pleuramya, 413, 464 

 Pleuronautilus, 293 

 Pleiirophorus, 195, 249, 327 

 Pleurosternon, 438 

 Pleurotoma, 531, 576 

 Pleurotomaria, 158, 196, 249, 



327, 390, 436, 464 

 Plicntula, 350, 385, 492 

 Plinthosella, 466 

 Pliocene Series, 11, 526, 586 

 Pliopithenis, 577 

 Pliosaurus, 386, 434 

 Plocoscyphia, 466 

 Plougastel Grits, 213 

 Pluckley, 450 

 Plutonia, 75 

 Plymouth, 204, 207, 208 

 Plynlimmon, 632 

 Polacanthus, 464 

 Poland, 183, 222, 241, 312, 



431, 521 



Polesworth, 332 

 Polyptychites, 436 

 Polyptychodon, 464 

 Pomeroy, 139, 178, iST 

 Pontefract, 297, 335 

 Pontesford Hill, 56 

 Pontian stage, 587, 005, 607 

 Pontypool, 307 

 Popanoceras, 327, 344 

 Populus, 464, 527, 574 

 Porcellia, 196 

 Porlock, 367 

 Porsguen Slates, 213 

 Portheus, 464 

 Portlandian, 383, 432, 445, 



455, 460 

 Portland Beds, 432, 445 



,, Bill, 645 

 Portscatho Beds, 144 

 Portsmouth, 546 

 Portugal, 100, 144, 187 

 Portunites, 528 

 Posidvniella, 248 



Posidonomya, 246, 350 



Potamides, 530, 559, 576 



Potamomya, 528 



Poterioceras, 196, 249 



Poteriocrinus, 247 



Potton, 483 



Prague, 222 



Preservation of organic re- 

 mains, 16, 17 



Presteign, 165 



Preston, 359 



Prestwich, Sir J., 593 



Prestwichia, 292 



Primofilices, 289 



Prionocydus, 466 



Prioiiotropis, 466 



Pristis, 528 



Probus Grits, 202 



Procervulus, 577 



Productus, 195, 246, 248, 327 



Proetus, 110, 156, 195, 248 



Prolecanites, 196, 249 



Pronorites, 249 



Protapims, 557 



Proturcluean Rocks, 35 



Proterosaurus, 327 



Prothyris, 195 



Protocardia, 350, 385, 388 



Protnplasma, 315 



Protosphyrcena, 464 



Protospondylus, 347 



Protospongia, 73, 74 



Provence, 431, 487, 489, 517, 

 555, 600 



Proviverm, 528 



Przibram Shales, 64 



Psammodus, 251 



Psammosteus, 226 



Psaronius, 289, 325 



Pseudocrimis, 156 



Pseudodiadema, 385 



Pseudomelania, 350, 386 



Pseudomonotis, 327, 351, 390 



Psiloceras, 386, 389 



Psilaphyton, 226 



Pteranodon, 465 



Pteraspis, 196, 204, 226, 228 



Pteria, 350, 388 



Pteridospenns, 289, 325 



Pterichthys, 224 



Pterincp.a, 158, 161, 162, 195 



Pterinopeeten, 248 



P^cris, 528 

 Pterocerian stage, 452 



Pterodactyles, 384, 433, 434 



Pterodon, 528 



Pteroperna, 410 



Pteropkyllum, 315, 325, 350, 



371, 385, 412 

 Pterosauria, 384 

 Pterygotus, 156, 162, 224, 226 

 Ptychites, 349, 351 

 Ptychodus, 466 

 Ptychoparia, 91 

 PtychopUria, 195, 198 

 Ptychostama, 350 

 Pugnax, 248 

 Pugnellvs, 466 

 Punfield Beds, 477, 481 

 Pufbeck Beds, 432, 448, 449 



Purbeckian, 452, 460 

 Purley Shales, 93 

 Purpura, 591 

 Purpurina, 386 

 Pygaster, 410 

 I'l/iiHi-Hf:, 410, 464 

 Pyrenees, the, 187, 281 

 Pynila, 528 



Quaderstein, 518 

 Quantock Hills, 207, 367 

 Queen Camel, 395 

 Quercus, 574, 578 



Raasey, 368, 369, 403, 404, 428 

 Radiolarian cherts, 135, 130, 



150, 186, 276 

 Radiolites, 466 

 Radstock Beds, 304 

 Raibl Beds, 373, 375 

 Raised Beaches, 645 

 liamipora, 115 

 Ramsay, Sir A. C., SO, 87, 88, 



331 



Ramsdell Clay, 541 

 Ramsey Island, 116 

 Raatall, R. H., 402, 443 

 Rastrites, 155, 157 

 Rastrites Shales, 182 

 Raugraben Shales, 375 

 Reade, T. M., 629 

 Reading Beds, 527, 537, 539 

 Reculvers, 537 

 Red Chalk, 500 

 Red Crag, 584, 592, 596 

 ,, Head Group, 232 

 Redon, 141, 142 

 Redonia, 112 

 Reed, E. Cowper, 140 

 Reef Limestone, 191 

 Reid, C., 276, 562, 593, 596, 



599, 600, 601, 603, 609, 649 

 Rei (fling Limestone, 373, 374 

 Reigate, 478, 479 

 Reinach, von, 333 

 Relative age of strata, 2 

 Remopleurides, 110 

 Rennes, 99 

 Rensellceria, 195 

 Reptilia, 384 

 Ret:ia, 102 

 Revinian Series, 101 

 Reynolds, S. H., 139, 180 

 Rhabdocidaris, 385 

 Rhacopteris, 245 

 Khacophyllites, 349 

 Rhifitic Beds, 375, 383, 395, 



399, 405, 408, 456 

 Rhamphorhynchus, 434 

 Rhine, the, 600, 608 

 Rhine valley, 219 

 Rhinoceros, 588, 601, 638 

 Rhinog Grits, 81 

 Rhipldocrinus, 195 

 Rhivvlas Limestone, 125 

 RMzodopsis, 292 

 Rhizodus, 250, 292 

 Rhizophyllum, 156 

 Rhodocrinus, 247 

 Rhyader Slates, 168 



