User blog comment:Kogath/Monster Hunter: World Discussion/@comment-32282413-20171030191440/@comment-5158920-20171030211030

It has the gait of a mammal-like reptile and in G. Jagras case it has the skeleton of Zinogre who is a advanced Fanged Wyvern. The Fanged Wyverns are reptillian but they also share mammal traits such as fur or in the way they move etc. Go look up the description and you will see that Fanged Wyvern= Synapsids.