Height 41 mm

Its hollow bones and light body structure allowed it to fly for long periods of time and cover great distances in search of food

la cabeza del Kritosaurus era más sencilla en comparación

Height 232mm

while others classify it as a carcharodontosaurid

Arctodus pristinus creature studio Height 41 mmArctodus 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,