IXUKX. 



469 



Rhinoceros 335 

 Rhinocerotidse 332 

 Kliinoptera 53 

 Rhipidistia 71 

 BhuodonticUe 74 

 Rhizodopais 74, 124 

 Rhizodus 74 

 Rhopalodon 155 

 Rhynchocephalia 183 f 

 Rhynchocephalia vera 186 

 Hhynchodus 55 

 Rhynchosaurus 189 

 Rhytidosteus 139 

 Rhytina 277 

 River drift man 410 

 Rodentia 373 



Sabre-toothed tiger 400 

 Sagenodus 62, 63 

 Saiga 372 

 Salamanders 139 

 Samotberium 369 

 Sardinioides 119 

 Saurichthys 90 

 SaurodontidaB 118 

 Sauropoda 200 

 Sauropterygia 159 

 Saururae 232 

 Scalpriform teetb 373 

 Scapanorhynchus 49 

 Scapbaspis 5 

 Scapbognathus 225 

 Scaumenacia 22, 62, 63 

 Scelidosaurus 210 

 Hcelidotherium 280 

 Hciuroides 379 

 Sciuromorpha 378 

 Sciurus 378 

 Sclerorbyncbus 52 

 Scombresocidse 120 

 Scombresox 120 

 Scombridaa 121 

 Scombroclupea 118 

 Scopelidea 119 

 Scyllii.li. 46 

 Scyllium 48 

 Seal 402 



Sectorial tootb 389 

 Selachii 39 

 Selachoidei 40 

 Selenodont 340 

 Semionotidae 95 

 Semionotus 95 

 Semnopithecus 407, 408 

 Serpentarius 244 

 Sbmks 41 

 Sbastasaurus 181 

 Shrew 403 

 Si hi rn ids 119 

 Simiidffl 407 

 Simocyon 392 



Simplicidentata 378 



Sirenia 274 



Sirenoidei 61 



Sivatherium 370 



Skates 49 



Slotbs 278 



Smilodon 401 



Snakes 195 



Solea 120 



Solitaire 244 



Soricidae 403 



Souslik 378 



South American Tertiary fauna 429 



Spalacotberium 260 



Sparassodonta 386 



Spathiurus 117 



Specialization xxiii 



Sperm-whale 273 



Spermophilus 378 



Sphargis 173 



Sphenacanthus 40, 44 



Sphenodon 183 



Sphynena 121 



Sphyraenidae 120 



Spinacidaa 50 



Squalodon 272 



Squaloraiidte 55 



Squaloraja 55 



Squamata 190 



Squatina 50 



Squatinidse 50 



Squirrel 378 



Stagodon 262 



Stagonolepis 217 



Stegocephalia 123 



Stegodon 305 



Stegosaurus 210 



Steneofiber 378 



Steneosaurus 219 



Stenoplesictis 396 



Stereognathus 249 



Stereosternum 164 



Sterrholophus 21(5 



Strepsodus 74 



Strongyloceroa 366 



Strophodus 46 



Struthio 241 



Strutbiones 241 



Struthiosaui-us 213 



Stylinodon 278 



Stylinodontia 277 



Stypolophus 383 



Succession of faunas xix, 411 



Suidae 341 



Sula 244 



SUB 345 



Syndactylons 263 



Synechodus 40, 1'i 



Systemodon 322 



Tseniodonta 277 



