Basically conveys my idea. Going along the idea that most if not all the animals on Infinite Succor are herbivorous or at least peaceful, I figured a lot of the extra teeth and stuff on the guy was due to Flood mutation—the same goes for a lot of its bulk, which seems to comprise a couple of individuals. So it's more a slimmed down version of it, or a bulked up gazelle. I figure it would at least have some armor to go along with its sort of headpiece. Eyes? Doesn't have any in the pic but I assume it's not needed at that point, and is covered along with the sort of stripped flesh look.

The only thing I thought seemed like it'd be part of the original animal are those wicked front claws it has. Since I'm presuming it's peaceful, I figure they were for digging or some sort of mating function, rather than being killing machines.