All right, you can download my new, one-page micro-game here:
Personally, I think it's pretty sweet.
This is actually the foundation/skeleton for a decent little Lost World RPG. The full version would have fuller examples and elaborations on how to use the ability scores for task resolution, not to mention more stock antagonists (cannibals, Vikings, Roman legionnaires...plus more dinos, of course!). It would (will?) also furnish rules for scenario creation, probably with a few random tables.
The "end game" included with the micro is a simplified version of what I would use for a full game. It should be enough for play-testing. Unlike some RPGs there IS an objective to the game: getting the heck out of dino-land. As with the D&D endgame, not everyone will choose to pursue this goal, instead continuing to wander ("adventure") or settle roots in the prehistoric world.
Those folks will probably be eaten.
Anyway, hope you enjoy it; any and all feedback is appreciated. In addition to six-sided dice, you will also require one (1) deck of playing cards. I recommend using ones with a dinosaur theme. I picked up a set for myself today ($6) from Top Ten Toys: The Age of Dinosaurs.