The postcranial skeleton

The postcranial body was compact

It lived during the Middle and Late Jurassic

Wingspan 667 mm

based on the structure of its skull and teeth adapted to chewing plants

Arctodus pristinus Alamosaurus The postcranial skeletonArctodus pristinus is an extinct species of short faced bear belonging to the genus Arctodus , which lived in North America during the Pleistocene, approximately between 2. 5 million and 10,000 years ago. It was a close relative of Arctodus simus , although smaller in size and with some morphological differences in its skeleton that suggest different ecological adaptations. Its fossil remains have been found mainly in the southeastern United States,