704 
Pyrula, 474, 476 
Pythina, 411 
Pythiopsis, 493 
Pyxis, 317 
Quenstedtia, 101, 418 
Quenstedtoceras, 580 
Quinqueloculina, 26, 
Quoyia, 459 
Rachura, 657 
Radiocavea, 264 
Radiofascigera, 264 
Radiolites, 404 
Radula, 383 
Rafinesquina, 312 
Ramipora, 283 
Ranella, 475 
Rangia, 420 
Raniella, 665 
Ranina, 664 
Raninoides, 665 
Rapana, 478 
Raphistoma, 443 
Raphistomella, 443 
Raphitoma, 483 
Rastrites, 118 
Receptaculites, 67 
Reckur, 660 
Redonia, 362, 363 
Regina, 362 
Reiflingites, 559 
Reineckia, 583 
Remeleoceras, 526 
Remondia, 379 
Remopleurides, 628 
Rensselaeria, 326 
Rensselandia, 326 
Reptaria, 261 
Reptelea, 271 
Reptocea, 270 
Reptofascigera, 263 
Reptotubigera, 262 
Requienia, 400 
Retecava, 262 
Retelea, 271 
Reteocrinus, 144 
Retepora, 289 
Reticulipora, 262 
Retiograptus, 119 
Retiolites, 119 
Retusa, 487 
Retzia, 337 
Rhabdammina, 23 
Rhabdoceras, 561 
Rhabdomeson, 281 
Rhabdophyllia, 87 
Rhabdopleura, 459 
Rhabdus, 431 
Rhacodiscula, 49 
Rhacophyllites, 567 
Rhadinoceras, 523 
Rhaetina, 329 
Rhaetites, 565 
Rhagadinia, 49 
Rhaphanocrinus, 145 
Rhaphidonema, 64 
Rhectocyma, 395 
Rheophax, 24 
Rhinacantha, 477 
Rhineceras, 523 
Rhinidictya, 279 
Rhinobolus, 306 
Rhinobrissus, 247 
Rhinocaris, 657 
Rhinoclama, 393 
Rhinopora, 280 
Rhipidocardium, 369 
Rhipidocrinus, 146 
Rhipidogorgia, 106 
Rhipidogyra, 91 
Rhipidomella, 319 
Rhizangia, 86 
Rhizocrinus, 169 
Rhizophyélum, 79 
Rhizopoterion, 60 
Rhizostomites, 121 



TEXT-BOOK OF PALAEONTOLOGY 
Rhodaraea, 96 
Rhodea, 496 
| Rhodocrinus, 145 
Rhodophyllum, 78 
Rhoéchinus, 221 
| Rhombifera, 137 
Rhombina, 647 
Rhombopora, 281 
Rhombopteria, 367 
Rhopalocoma, 207 
Lhopia, 210 
Rhyncehidia, 452 
Rhynchomya, 389 
Rhynchonella, 324 
| Rhynchonellina, 324 
Rhynchopora, 324 
Rhynchoporina, 324 
Rhynchora, 333 
Rhynchorina, 333 
Rhynchorthoceras, 521 
Rhynchospira, 337 
Rhynchostreon, 373 
Rhynchotrema, 323 
Rhynchotreta, 323 
Rhyphus, 688 
Rhytimya, 388 
Ribeiria, 654 
Richthofenia, 319 
licinula, 478 
Rimella, 472 
Rimula, 446 
Ringicula, 486 
Ringinella, 486 © 
Rissoa, 465 
Rissoina, 465 
Rithma, 684 
Rizoceras, 529 
Rocellaria, 423 
Roemeraster, 210 
Roemerella, 310 
Romingeria, 101 
Romingerina, 326 
Rostellaria, 472 
Rostellites, 480 
Rotalia, 30 
Rotella, 451 
Rotellina, 451 
Rothpletzia, 461 
Rotula, 238 
Roualtia, 482 
Roudairia, 394 
Rumina, 496 
Runa, 236 
Rupertia, 31 
Rutoceras, 522 
Rutotia, 371 
Ryticeras, 522 
Saccammina, 23 
Saccocaris, 655 
Saccospongia, 52 
Sactoceras, 527 
Sagda, 495 
Sageceras, 555 
Sagenites, 554 
Saintia, 384 
| Salenia, 227 
Salicornaria, 285 
Salicornia, 285 
Salmacis, 232 
Salpingostoma, 445 
Salteraster, 207 
Salterella, 490 
Sandbergeroceras, 554 
Sandbergia, 470 
Sandlingites, 560 
Sanguinolaria, 418 
Sanguinolites, 361 
Sannionites, 514 
Sao, 629 
Sarmaticus, 448 
Saxicava, 422 
Scaevola, 450 
Scala, 458 
Scalaria, 458 
Scalaripora, 280 

Scaldia, 407 
Scalites, 458 
Scalpellum, 650 
Scambula, 397 
Scapha, 480 
Scaphander, 487 
Scaphanidia, 452 
Scapharca, 366 
Scapheus, 662 
Scaphiocoelia, 326 
Scaphiocrinus, 159 
Scaphites, 572 
Scaphula, 366 
Scarabaeides, 687 
Searabus, 493 
Scenella, 442 
Scenellopora, 268 
Scenidium, 320 
Sceptropora, 281 
Schistoceras, 552 
Schistophylloceras, 568 
| Schizambon, 309 
Schizambonia, 309 
Schizaster, 246 
Schizoblastus, 196 
Schizobolus, 310 
Schizochiton, 436 
Schizocrania, 309 
Schizodentalium, 431 
Schizodesma, 420 
Schizodiscus, 443, 641 
Schizodus, 379 
Schizogonium, 444 
Schizopholis, 312 
Schizophoria, 319 
Schizoplax, 435 
Schizoporella, 289 
Schizorhabdus, 60 
Schizosia, 402 
Schizostoma, 446 
Schizothaerus, 420 
Schizotreta, 310 
Schloenbachia, 589 
Schlotheimia, 574# 
Schlueteria, 569 
Schmidtia, 306 
Schroederoceras, 519 
Sena aegiacs 32 
Scintia, 411 
Scipipnoceras, 571 
Sclerocrinus, 170 
Scolecoderma, 256 
Scoliostoma, 458 
Scolithus, 256 
Scolopendra, 681 
| Sconsia, 474 

Scrobicularia, 418 
Seruparia, 285 
Scrupocellaria, 284 
Sculda, 660 
Scurria, 442 
Scutella, 237 
Scutellina, 446 
Scutinoblattina, 684 
Scutus, 446 
Seyllaridia, 663 
Secyllarus, 663 
Seyphocrinus, 147 
Seytalia, 54 
Scytalocrinus, 160 
| Sebargasia, 65 
Sedgwickia, 362 
Seebachia, 395 
Selenaria, 285 
Selenella, 326 
Selenopeltis, 633 
Selenopora, 270 
Seliscothon, 54 
Sellaclymenia, 548 
Semele, 418 
Semicea, 270 
| Semicosminium, 281 
Semicytis, 264 
Semielea, 271 
Semifasipora, 263 
Seminula, 339 
Semiplicatula, 384 
Semitubigera, 263 
| Senectus, 448 
Sepia, 601 
Septameroceras, 531 
Septifer, 386 
Septopora, 283 
Seraphs, 471 
Seriatopora, 84 
Serietubigera, 263 
Serpula, 253 
| Serpulites, 253 
Serripes, 412 
Sestromostella, 64 
| Setosella, 287 
Sibirites, 558 
Sicanites, 563 
Sieberella, 322 
Siemiradzkia, 582 
Sigaloceras, 587 
Sigaretus, 462 
Silbyllites, 554 
Silenia, 392 
Silesites, 570 
Silia, 481 
Siliqua, 419 
Siliquaria, 466 
| Silurina, 363 
| Simbirskites, 583 
| Simoceras, 582 
Siphonalia, 476 
Siphonentalis, 432 
Siphonia, 49 
Siphonocoelia, 63 
Siphonodentalium, 432 
Siphonotreta, 309 
Sirenites, 560 
| Sismondia, 236 
Sistrum, 478 
Slimonia, 676 
Smilotrochus, 83 
Sinittia, 288 
Solanocrinus, 174 
Solariella, 451 
Solarium, 446, 458 
| Solaster, 210 
| Solecurtus, 419 
Solemya, 361 
Solen, 419 
Solenastraea, 87 
Soleniscus, 457 
Solenocaris, 655, 656 
Solenocheilus, 525 
Solenopsis, 361 
Solidula, 484 
Sollasia, 65 
Somatogyrus, 460 
Sonneratia, 584 
Sonninia, 578 
Sowerbya, 418 
Sowerbyceras, 567 
Spanila, 367 
Spaniodon, 411 
Sparsicaved, 263 
Spatagocystis, 248 
Spataugus, 247 
Spatha, 378 
Spathiocaris, 658 
Spatiopora, 269 
Speo, 484 
Sphaenia, 421 
Sphaera, 409 
Sphaeractinia, 110 
| Sphaerechinus, 232 
Sphaerella, 410 
| Sphaerexochus, 635 
| Sphaeriola, 409 
| Sphaerites, 209, 553 
Sphaerium, 398 
Sphaeroceras, 580 
Sphaerocoelia, 65 
| Sphaerocrinus, 158 
Sphaeroidina, 30 
| Sphaeronites, 182 
Sphaerucaprina, 402 
Sphaerulites, 404 


