Please help finding the name of a very good game.

SNES game with a prehistoric theme with dinosaurs and all that. The main character is a boy with a tail that has to complete stages (just like mario). The boy is wearing only shorts (I think made out of leaves). In the middle of the game, there will be a flying dino that if you catch will grab you at your shoulders and take you to a bonus level in which you have to collect red gems (just like gold coins in mario). You will be in that bonus level only till that flying dino is with you. The moment he leaves that stage, so do you. If you are hurt in that game, your jungle boy will turn into a baby monkey and if you eat something in that game (am not sure what) it will turn you back into the boy.

Thats all I can remember of that game. Can you guys think of anything. I really miss that game. I had played it for a long time when I was a boy but can't remember the name of that game. Please help.

Thanx in Advance.