There’s nothing more impressive than a full skeleton on display in a museum. Typically a challenge to collect from the field, these are valuable to science both for what they teach and how well they attract tourists, public interest, and therefore funding. And when you look at them, can’t you image the animal fleshed out, running over the ground, hunting?
This is a Hyaenodon horribulus (bonus points for great name) from the upper (late) Oligocene. Found in Wyoming, it current resides in an Ontario museum.