Pack sounds good. And actually, thinking back on it, it would appeal to my evolutionary biologist sense if we did call it "gorgonopsid, Inostrancevia". Therapsid is a paraphyletic clade, because "Therapsidia" includes both gorgonopsids and cynodonts, and cynodonts contain both primitive forms and modern mammals.
Thinking on its environment, the Gladiodon was a montane creature, and I don't think any actual gorogonopsids were. Warm hills and plains, perhaps? If we took it out of the mountains, we might want to work with its skill points a bit, strip out Balance, that sort of thing.