Sacuanjoche
Sahelanthropus
Saichania
Saltasaurus
Saltoposuchus
Saltopus
Sanctacaris
Sanmartinoceras
Sarcosuchus
Saukiella
Sauroctonus
Saurolophus
Sauropelta
Sauropod dinosaur
Saurornithoides
Saurornitholestes
Scapanorhynchus
Scaphites
Scaphognathus
Scaponyx
Scelidosaurus
Schizoneura
Schlotheimia
Schwagerina
Scipionyx
Scleromochlus
Scolosaurus
Scutella
Scutellosaurus
Scutosaurus
Segisaurus
Segnosaurus
Seismosaurus
Selenopeltis
Seymouria
Shantungosaurus
Sharovipteryx
Shonisaurus
Shunosaurus
Siamosaurus
Siamotyrannus
Sieberella
Silvisaurus
Sinanthropus
Sinomegaceros
Sinornithosaurus
Sinosauropteryx
Sivatherium
Smilodectes
Smilodon
Solaster
Somalirhynchia
Sordes
Spathobathis
Sphaeocoryphe
Sphenopteris
Sphyrna
Spinosaurus
Spiriferidae
Spirocerus
Spirophyton
Spriggina
Squalicorax
Staurikosaurus
Stegoceras
Stegodon
Stegomastodon
Stegosaurus
Stegotetrabelodon
Steneosaurus
Stenonychosaurus
Stenopterygius
Stephanorhinus
Stethacanthus
Stilbocrocis
Stromatolites
Struthiomimus
Struthiosaurus
Stygimoloch
Stylinodon
Styracosaurus
Suchomimus
Supersaurus
Swartpuntia
Sylviornis
Syndoceras
Syntarsus
Synthetoceras
Taeniopteris
Talarurus
Tanystropheus
Tapejara
Taprognathus
Tarbosaurus
Taxylodon
Tazoudasaurus
Tchadanthropus
Teleoceras
Telmatosaurus
Temnodontosaurus
Tenontosaurus
Teratornis
Teratosaurus
Terebratula
Terminonaris
Testudinites
Tetralophodon
Texanites
Thadeosaurus
Thalassocnus
Thaumatosaurus
Thecodontosaurus
Therizinosaurus
Theropithecus
Thescelosaurus
Thoatherium
Thoracosaurus
Thrinaxodon
Thyestes
Thylacoleo
Timimus
Tingia
Titanohyrax
Titanosaurus
Titanotylapus
Tommotia
Torosaurus
Toxodon
Tragocerus
Trachodon
Tribrachidium
Triceratops
Trigonia
Trinacromerum
Trinucleus
Trilobite
Triplagnostus
Tristychius
Tritylodon
Troodon
Tropeognathus
Tropidodiscus
Tsinania
Tsintaosaurus
Tuojiangosaurus
Turiasaurus
Turritella
Tylosaurus
Tyrannosaurus
Tytthostonyx
Uintatherium
Ultrasauros
Ursus
Utahraptor
Varanosaurus
Varnerxiphactinus
Velociraptor
Vinctifer
Virgatosphinctes
Virgotrigonia
Vitirallus
Viviparus
Vogelgnathus
Vulcanodon
Waptia
Wellesiosaurus
Williamsonia
Willo
Wood, petrified
Woolungasaurus
Wuerhosaurus
Xenacanthus
Xenopus
Xiaosaurus
Xiphactinus
Yandusaurus
Yangchuanosaurus
Yaverlandia
Yingchuanosaurus
Yoldia
Yunnanosaurus
Zalambdalestes
Zambiasaurus
Zelkova
Zinjanthropus
Zuniceratops
Zygorhiza