which is suggested by the presence of several specimens found together

Yangchuanosaurus tenía una estructura robusta

we can imagine what these ancient creatures were like and how they interacted in their natural environments

Sus piernas eran fuertes y relativamente largas

Snout-tail length 193 mm

Arctodus simus Arctodus which is suggested by theArctodus simus , commonly known as the short faced bear, was one of the largest terrestrial carnivores of the Pleistocene of North America. This extinct member of the subfamily Tremarctinae inhabited a wide range of ecosystems, from the central plains to the northern forests of the continent, between approximately 800,000 and 11,000 years before present. Its highly specialized morphology has been the subject of intense debate surrounding its trophic