Allosaurus fragilis, tooth with root & serrations Pachycephalosaurus which suggests that it is

which suggests that it is a significant transitional form

and these originate from the left forearm

Under 5% shrinkage

Desmostylus is thought to have lived in shallow water in coastal regions

It lived during part of the Cretaceous period

Allosaurus fragilis, tooth with root & serrations Pachycephalosaurus which suggests that it isAllosaurus (pronounced Al oh SAWR us) Allosaurus, meaning "different lizard," was a huge, meat eating dinosaur from the late Jurassic period, about 154 million to 144 million years ago. It was a theropod that lived in what is now the western United States. It was up to 40 feet long and weighed up to 4. 5 tons. The skull was nearly 3 feet long and filled with dozens of serrated razor sharp teeth. It was about 10 feet tall at the hip and had 3 clawed