|
Tapinocaninus |
cast of skull and jaw |
Permian |
mammal-like reptile |
|
Taramelliceras |
fossil |
Jurassic |
cephalopod |
|
Tegulorhynchia |
fossil |
Tertiary |
brachiopod |
|
Terebratalia |
fossil |
Tertiary |
brachiopod |
|
Terebratula |
fossil |
Jurassic |
brachiopod |
|
Tetonius matthewi |
holotype of left mandible (cast) |
Tertiary |
primate |
|
Tetragraptus |
fossil |
Ordovician |
graptolite |
|
Tetraornis |
cast of skull |
Quaternary |
bird |
|
Thalassina |
fossil |
Quaternary |
arthropod |
|
Thalassoceras |
fossil |
Permian |
cephalopod |
|
Therezinosaurus |
cast of killer claw |
Cretaceous |
dinosaur |
|
Theriognathus |
cast of skull |
Permian |
mammal-like reptile |
|
Thrinaxodon |
cast of skull and jaw |
Triassic |
mammal-like reptile |
 |
Tiktaalik |
cast of head and fin |
Devonian |
fish |
|
Timorechinus |
fossil |
Permian |
echinoderm |
|
Timorites curvicostatus |
fossil |
Permian |
cephalopod |
 |
Tribranchidium hearadicum |
cast |
Precambrian |
echinoderm |
|
Triceratops horridus |
cast of tooth |
Cretaceous |
dinosaur |
|
Trigonia |
fossil |
Cretaceous |
bivalve |
|
Trimerorhachis |
cast of skull |
Permian |
amphibian |
 |
Trimerorhachis insignis |
cast of skull |
Permian |
amphibian |
|
Trirachodon |
cast of skull and jaw |
Triassic |
mammal-like reptile |
 |
Tristichopterus alatus |
cast of whole fish |
Devonian |
fish |
 |
Triticities plummeri |
fossil |
Pernian |
eukaryote |
|
Tritylodon |
cast of skull |
Jurassic |
mammal-like reptile |
|
Troodon |
cast of brain |
Cretaceous |
dinosaur |
|
Tyrannosaurus rex |
cast of tooth |
Cretaceous |
dinosaur |
|
Uddenites |
fossil |
Pennsylvanian |
cephalopod |
|
Uddenites schucherti |
fossil |
Pennsylvanian |
cephalopod |
|
Ussurites |
fossil |
Triassic |
cephalopod |
|
Velociraptor |
cast of skull and killer claw |
Cretaceous |
dinosaur |
|
Vidrioceras |
fossil |
Permian |
cephalopod |
 |
Vinctifer |
cast of whole fish |
Cretaceous |
fish |
|
Virgoceras |
fossil |
Silurian |
cephalopod |
|
Waagenoceras |
fossil |
Permian |
cephalopod |
 |
Whatcheeria deltae |
photo of fossil |
Mississippian |
amphibian |
|
Wanneria |
fossil |
Cambrian |
arthropod |
|
Wasatchia |
cast of left mandible |
Tertiary |
mammal |
|
Xenaspis |
fossil |
Permian |
cephalopod |
|
Xenaspis |
fossil |
Permian |
cephalopod |
|
Xenaspis |
fossil |
Permian |
cephalopod |
|
Xenodiscus |
fossil |
Permian |
cephalopod |
|
Xenodiscus besairie |
fossil |
Permian |
cephalopod |
|
Xenodiscus |
fossil |
Permian |
cephalopod |
 |
Xenthorhysis tabrumi |
cast of jaw |
Tertiary |
primate |
|
Yabeina |
fossil |
Permian |
eukaryote |
|
Zatrachys |
cast of skull |
Permian |
amphibian |
|
Zetoceras |
fossil |
Jurassic |
cephalopod |
|
Zetoceras |
fossil |
Jurassic |
cephalopod |
|
Zygorhiza |
cast of skull |
Tertiary |
mammal |
