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Ceratosaurus
So far, the Dana Quarry has produced an impressive species list: Apatosaurus, Diplodocus, Amphicoelias, Camarasaurus, Allosaurus, Ornitholestes, Coelurus, Elaphrosaurus, Torvosaurus, Ceratosaurus, Othnielosaurus, Camptosaurus, and Stegosaurus. Except for one turtle, Dinochelys, the fauna lacks species associated with an aquatic environment such as fish, amphibians, and crocodilians. The depositional environment may have been more in the way of rivers and streams with floods occurring periodically as indicated by the water worn bone fragments preserved throughout most of the producing sandy layers.
The Dana Quarry is also a non-dinosaur – rich -fossil site, containing the remains of many species of extinct plants including; horsetails, ferns, cycads, and several families of conifers are present including an assortment of seeds and cones are quite common. Early mammals such as docodonts, symmetrodonts, and triconodonts have yet to be revealed.
