Dinosaurs on Mars

Did dinosaurs ever really live on Mars? I was once told that they left Earth on a spaceship. Were I leaving Earth on a spaceship, I would definitely stop by Mars. I wonder what it looked like back then.

Two dinosaurs wandering mars looking for donuts

However, I bet when they couldn't find any donuts, they left the place. Seems like Saturn would be more promising.

Dinosaur eating a donut, sitting on one of Saturn's rings

But then again, since you can't walk around on Saturn (gaseous giant and all) maybe it wouldn't be as fun.