Love time travel, we went along that road with our game too! I had fun playing this. I really wanted to win but I'm not sure if you have a win screen or not... so I'm assuming I didn't make it to the end.
I did get the big purple 'rewind' which I though was very clever and needed (felt that achievement 15 dinos down!). I enjoyed being able to move along the platformer (to run away from dinos) and would probably impliment a jump button to go with :p
I also really liked the blue bubbles from the time potal at the start. Good job :)