NORTH AMERICAN INDEX FOSSILS. 



Schizodesma, n, I 573 

 Schizodiscus, m, II 331 

 Schizodus, m, I 482 

 Schizolopha, f, I 637 

 Schizoneuroides, m, II 457 

 Schizophoria, f, I 267 

 Schizopoda, II 384 

 Schizoporella, f, I 170 

 Schizotreta, f, I 205 

 Schloenbachia, f, II 223 

 Schmidtella, f, II 343 

 Schroederoceras, n, II 70 

 Schuchertella, f, I 228 

 Sciara, f, II 455 

 Sciomyza, f, II 455 

 Scofieldia, f, II 356 

 Scolithus, m, II 246 

 Scopus, m, II 440 

 Scorpiones, II 416 

 Scorpions, II 416 

 Scutella, f, II 591 

 Scytalocrinus, m, II 510 

 Seila, f, I 749 

 Semele, f, I 568 

 Semicoscinium, n, I 143 

 Seminula, f, I 354 

 Sepioidea, II 22iZ 

 Sepiophorida, II 233 

 Septameroceras, n, II 131 

 Septastrsea, f, I 100 

 Serpula, f, II 235 

 Serricornia, f, II 447 

 Setodes, f, II 452 

 Shrimps, II 389 

 Shumardites, m, II 146 

 Sieberella, f, I 278 

 Sigaretus, m, I 715 

 Siliqua, f, I 569 

 Siliquaria, f, I 738 

 SimlDirskites, m, II 189 

 Sindon, f, II 432 

 Siphonalia, f, I 762 

 Siphonariidse, I 811 

 Siphonocrinus, m, II 553 

 Siphonodentaliidae, I 581 

 Siphonophorides, m, II 457 

 Snails, I 582 

 Snake-flies, II 451 

 Solariidae, I 711 

 Solarium, n, I 711 

 Solemya, f, I 375 

 Soleniscus, m, I 699 

 Solenocheilus, m, II 102 

 Solenopleura, f, II 277 

 Solenospira, f, I 653 

 Solyma, f, I 570 

 Sonneratia, f, II 193 

 Spaniodera, f, II 430 

 Spatangoida, II 577, 595 

 Spermophagus, m, II 447 

 Sphaerexochus, m, II 321 

 Sphserium, n, I 544 



Sphaerocystites, m, II 470 

 Sphaerodoma, n, I 701 

 Sphgeropthalmus, m, II 282 

 Sphenodiscus, m, II 214 

 Sphenotus, m, I 524 

 Sphyradoceras, n, II 74 

 Spiders, II 414 

 Spiloblattina, f, II 436 

 Spirifer, m, I 315 

 Spiriferina, £, I 314 

 Spirophyton, n, II 248 

 Spiroraphe, f, I 645 

 Spirorbis, m, II 235 

 Sponges, I 13 

 Springtails, II 443 

 Spyroceras, n, II 63 

 Squama, f, I 372 

 Squash-bugs, II 456 

 Stantoniella, f, II 441 

 Stantonoceras, n, II 221 

 Staphylinidae, II 447 

 Star fish, II 571 

 Staurograptus, ni, I 27 

 Stearoceras, n, II 89 

 Steganocrinus, m, II 528 

 Stenaster, m, II 572 

 Stenochisma, n, I 288 

 Stenocinclis, £, II 455 

 Stenogomphus, m, II 450 

 Stenopora, f, I 134 

 Stenotheca, f, / 607, II 



373 

 Stenovelia, f, II 456 

 Stephanocrinus, m, II 499 

 Stereolasma, n, I 56 

 Sthenorhytes, m, I 711 

 Stictoporella, f, I i57 

 Stictotrypa, f, I 166 

 Stoichus, m, II 431 

 Stoliczkaia, f, II 192 

 Stolopsyche, f, II 454 

 Stomatopora, f, I 118 

 Strabops, f, II 404 

 Stramentum, n, II 372 

 Straparollina, f, I 653 

 Straparollus, m, I 654 

 Streblotrypa, f, I i55 

 Strenuella, f, II 278 

 Strepsidura, f, I 770 

 Streptaxis, m, I 695 

 Streptelasma, n, I 54 

 Streptolathyrus, m, I 777 

 Strepula, f, II 35° 

 Striatopora, £, I 94 

 Stricklandinia, f, I 274 

 Strobilepis, f, 11 371 

 Stroboceras, n, II 86 

 Stromatocoerium, n, I 46 

 Stromatopora, f, I 44 

 Stromatoporella, f, I 42 

 Stromatoporoidea, I 34 

 Stromatotrypa, f, I 137 



Strombidae, I 755 

 Strombodes, m, I 70 

 Strombus, m, I 757 

 Strophalosia, f, I 239 

 Stropheodonta, f, I 212 

 Strophomena, f, I 222 

 Strophonella, f, I 220 

 Strophostylidae, I 676 

 Strophostylus, m, I 677 

 Strotocrinus, m, II 530 

 Styliferina, f, I 747 

 Styliola, II 16 

 Styliolina, f, II 15 

 Stylodictyon, n, I 41 

 Stylonurus, m, II 413 

 Subulites, m, I 696 

 Subulitidae, I 696 

 Surcul'a, f, I 800, 802, 803 

 Sycotypus, m, I 769 

 Symbathocrinus, m, II 500 

 Synaptophyllum, n, I 7:\ 

 Syncyclonema, n, I 507 

 Synphoria, f, II 324 

 Syntrophia, f, I 270 

 Synxiphosura, II 402 

 Syringopora, f, I 82 

 Syringostroma, n, I 44, 45 

 Syringothyris, f, I 341 

 Syrnola, I 710 



Tabulata, I 78 

 Taeniopora, f, I 161 

 Tainoceras, n, II 100 

 Talarocrinus, m, II 522 

 Tancredia, f, I 554 

 Taonurus, m, II 248 

 Tapes, m, I 566 

 Tarphyceras, n, II 66 

 Taxocrinus, m, II 564 

 Teinostomata, I 704 

 Teleiocrinus, m, II 527 

 Teleodesmacea, I 533 

 Tellina, f, I 566 

 Tellinopsis, f, I 385 

 Telotremata, I 281 

 Temnocheilus, m, II 95 

 Tenea, f, I 558 

 Tenebrio, m, II 447 

 Tenebrionidae, II 446 

 Tentaculites, m, II 10 

 Tentaculitidae, II 10 

 Tenthredinidae, II 449 

 Terebra, f, I 798 

 Terebrantia, f, II 449 

 Terebratella, f, I 306 

 Terebratula, f, I 303 

 Terebratulina, f, 304 

 Terebridae, I 798 

 Teredo, f, I 577 

 Termites, II 445 

 Termitidae, II 445 

 Tessarolax, f, I 754 



