User blog comment:Lord Loss/Monster Hunter Frontier G Discussion/@comment-93.34.10.163-20130329180135/@comment-3211692-20130330132945

I don't think we can call Pokarodon a full mammall. Look at it. It all sorts of armored plating and spikes that wouldn't be present on a normal mammal. At best, I'd say it's a therapsid, more akin to a reptile with mammalian traits.

Gobul, meanwhile, is pretty solidly on the 'fish' side of things. I mean, maybe it's an evolutionary link between Leviathans and true fish? It has the general body shape of a Leviathan, but the four legs are more like fins than actual feet.

Either way, I wouldn't be quick to say 'that's not (insert species here)'. Besides, we have Khezu, Gigginox, Akantor, and Ukanlos in the Flying Wyvern category and those go against most traits of Flying Wyverns that we know. Some variety isn't really a bad thing in broad categories.