I love Dinosaurs too! Pretty much always have!
Personally, I'd like to see more games where you play as Dinosaurs.
DinoSystem seems pretty interesting, but you play as a man or a God.
Saurian seems rather unique, sounds like it has some features I've always wanted out of a Dinosaur game, but we shall see.
So, Dinosaur games...hmm...I'll stick with games with playable Dinosaurs!
Jurassic Park (Genesis): I like this one because you get a choice to play as Dr. Grant, or a Raptor! (presumably the Big One) Go through similar levels with quite different fighting styles. Not great by any means, it's still fun and I've played through it several times.
Lost World (PS1): Another Jurassic Park game, this has 3 playable dinosaurs! Compy, Raptor, and T-Rex! My main beef is it's so hard, and you have to play through each character in order. I wanted to jump in and play as the T-Rex, but....nope. And T-Rex is a little underwhelming. Still, not many games let you play as a T-Rex!
EVO Search for Eden (SNES): This is a creative game. Start as a fish, use points to evolve different body parts, and progress through eras and evolve into different types of animals. The..."dinosaur era", has you evolve into a reptile, which has some dinosaur forms you can take. You get points to evolve by killing and eating other animals...but the game has an overall light-hearted style.
As for upcoming games, I'm looking forward to LEGO Jurassic Park, which will have stuff from all 4 movies. I'm sure dinosaurs will be playable in some capacity, especially because Jurassic World is gonna have ally Raptors!
Thinking about it, I haven't really played many games with playable dinosaurs!