GEOLGY 307 Chapter Notes - Chapter 5: Ceratosaurus, Theropoda, Mandible
Document Summary
Theropoda beast foot. the theropod dinosaurs spanned the entire duration of dinosaurs, from the late triassic until the end of the cretaceous. A large number of theropods have been named from isolated bones, and much of what we know about theropods for significant intervals of mesozoic time. The very large theropods with short necks and small forelimbs are the. Carnosaurs(literally meat lizards ), diverged early from the smaller, long-necked theropods having large forelimbs, the coelurosaurs (literally, hollow tailed lizards ) Primitive theropods, the ceratosaurus (literally, horned lizards ) represent a third branch in the evolution of theropods, a clade that diverged early from the clade that later branched into carnosaurs and coelurosaurs. The ceratosaurus include dilophosaurus and ceratosaurus, two large theropods that possessed the fused hind-limb skeletal elements here judged to be significant evolutionary novelties of the ceratosaurus. 20 evolutionary novelties that distinguish theropods from other dinosaurs. They also reflect the fact that theropods were highly specialized runners and predators.
