Definitely a PC side scrolling platformer with a female main character. I think she fights dinosaurs but I could be wrong, maybe there are some lizards or big birds. From the way I remember graphics it could be 1993-1994 but maybe it is a later game designed to look this way. Almost definitely from 1990's anyway. Better graphics than Jungle Jill and Entity. Not anything like Dino Crysis as well. I don't think it was a very famous or successful game. Faint memory-sorry for poor description but that is why I can't locate it myself.