I finally worked out how to modify dinosaur models in Max and get them back into the game without them being screwed up (no idea how I missed two very obvious buttons), so I've been tweaking some of the dinosaurs to better resemble their on-screen or otherwise represented companions. First up, I did a couple changes to the tyrannosaurus from JPOG; nothing too major, just fixed the thin neck, removed the "waddle", closed the mouth, lengthened the tail and lowered the brow ridge: