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Jurassic time 208-145 million years ago. Dinosaurs dominated all but the smallest niches. When supercontinent Pangaea pulled apart, ridges and continental shelves formed under water between continents. Rising ocean levels flooding over continents created warm shallow inland seas. Seas continued to advance inland as worldwide temperatures warmed. Dinosaurs diversified and multiplied in a mostly hot humid climate filled with lush vegetation. |
 Click on photo for larger image. |
 Click on photo for larger image. |
Fossils on exhibit |
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|---|---|---|---|
| Name | Description | Location | Time |
| Allosaurus | complete skeleton (cast) | Morrison Formation, Cleveland Lloyd, Utah | Late Jurassic |
| Apatosaurus (probably) | Bone slice | Morrison Formation, San Jaun County Utah | Jurassic |
| Archaeopteryx | complete skeleton (cast) | Bavaria, Germany | Upper Jurassic |
| Coprolite | fossilized dinosaur feces | Morrison Formation, Garfield, Utah | Late Jurassic |
| Camarasaurus | front tooth (cast) | Morrison Formation, Emery County, Utah | Jurassic |
| Camptosaurus | skull (cast) | North America, possibly Europe | Late Jurassic |
| Ceratosaurus | tooth | Brushy Basin Member, Morrison Formation, San Juan County Utah | Jurassic |
| Othnielia or Nannosaurus rex | complete skeleton (cast) | Morrison Formation, Emery County, Utah | Jurassic |
| Stegosaurus | tooth | Brushy Basin Member, Morrison Formation, San Jaun County, Utah | Jurassic |
| theropod | footprints | formation unknown, Connecticut River Valley | Early Jurassic |
| Unidentified dinosaur bone | visitors may touch this fossil | Morrison formation | Late Jurassic |
