Supplemental MaterialCave-ish - Stupid caveman speak from Bob Pavlik, whose 'Konk on the Noggin' was the source of how we move figures in Caveman.
Nils Hedglin's one-page QRS for Caveman (PDF).
15mmIrregular Miniatures' Tusk range can provide both cavemen, and animals to hunt (or be hunted by).
25/28mmCopplestone Castings have Cavemen and Cavewomen in their "High Adventure - Lost Worlds" line. They also have a number of Dinosaurs (if you want to have Cavemen battling Dionosars instead of sabre-toothed cats).
The Honourable Lead Boiler Suit Company has a set of cavemen (and "one unspecified beast/thing"). They can also provide a Mammoth and Dinosaurs.
Steve Barber Models has an entire range of "Prehistoric Settlement", including humans, animals and watery beasts.