Gobiatherium was one of the last Uintatheres, from the Mid Eocene

Eocene

The Eocene Epoch, lasting from about 56 to 34 million years ago , is a major division of the geologic timescale and the second epoch of the Paleogene Period in the Cenozoic Era. The Eocene spans the time from the end of the Palaeocene Epoch to the beginning of the Oligocene Epoch. The start of the...

 of Mongolia. Unlike its North America

North America

North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

n cousins, Uintatherium

Uintatherium

Uintatherium, is an extinct genus of herbivorous mammal that lived during the Eocene epoch, which includes a single species currently recognized, U. anceps. They were similar to today's rhinoceros both in size and in shape, although they are not closely related...

or Eobasileus

Eobasileus

Eobasileus cornutus is an extinct species of dinocerate mammal.Eobasileus was long and stood tall at the shoulder. It looked very similar to the related Uintatherium. Like Uintatherium, it had three pairs of blunt horns on its skull, possibly covered with skin like the ossicones of a giraffe...

, Gobiatherium lacked knob-like horns, or even fang-like tusks. Instead, it had enlarged cheekbones and an almost spherical snout.

Because of the noticeable lack of many diagnostic uintathere features (the horns and tusks), the genus is placed within its own subfamily, "Gobiatheriinae," though some experts prefer to rank it as the family "Gobiatheriidae".