How is the skull of *Hyaenodon* described in relation to its body mass?

Answer

Disproportionately large

The head was a defining feature, described as disproportionately large compared to its body mass, housing jaw muscles capable of generating tremendous biting force.

How is the skull of *Hyaenodon* described in relation to its body mass?
aparanceextinctmammalPrehistoricHyaenodon