Tricerachops
Tricerachops is the first Dino-Man created by Max Maximus. She was his main henchman for a long time, leading most of his missions, doing all his dirty work. But eventually, I guess even half-dinosaur monsters are able to figure out that Maximus is a jerk.
She left his organization and now she kind of does her own thing. She shows up every now and then, fighting against Maximus, trying to get other Dino-Men to join her cause--to stop being slaves to Maximus.
She’s not exactly on our side, but she doesn’t really fight Super Dinosaur and me all that much. Tricerachops is not working alone though--she’s got help, and we have no idea who that is.