Ursus americanus, black bear brain endocast Dimorphodon This specimen was found in

This specimen was found in the Green River Formation of Wyoming

Harding County

and hollow bones

Species: Smilodon fatalis

Ursus americanus, black bear brain endocast Dimorphodon This specimen was found inThis is a brain endocast of the The American black bear. 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