Allosaurus, brain endocast Ankylosaurus the lowest levels in the

the lowest levels in the water column could not support much life and was devoid of oxygen

Rodents are a group of placental mammals which first appeared within 10 million years after the extinction of the dinosaurs 65 million years ago

9 tons (7 to 9 metric tons)

photographs

Ples was discovered by Dr

Allosaurus, brain endocast Ankylosaurus the lowest levels in theThis is a brain endocast of Allosaurus. An endocast or endocranial cast is a cast made of the mold formed by the impression the brain makes on the inside of the neurocranium (braincase), providing a replica of the brain with most of the details of its outer surface. Endocasts can also form naturally, when sediments fill the empty skull, after which the skull is destroyed and the cast fossilized. Scientists are increasingly utilizing computerized