within the Besano Formation

Although it shared some characteristics with modern amphibians

the population began to decline rapidly in the mid-1980s

Tarbosaurus bataar was a theropod dinosaur that lived during the Cretaceous period

Its general appearance resembled that of a crocodile

Arctodus pristinus Asfaltovenator within the Besano FormationArctodus 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,