Bison antiquus, brain endocast Pachycephalosaurus Archaeological Societies

Archaeological Societies

Rhaeboceras halli

and together preserve the parts of the dorsal vertebrae and gastralia

The size and condition of the fossils in each kit will vary

Bison antiquus, brain endocast Pachycephalosaurus Archaeological SocietiesThis is a brain endocast of the the extinct Bison. 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