Ok...

Extinct sounds like a better name for the bad guys. "The Extinct." Sounds too evil for the titular Rider.

Or how about KR Rex?

I really like the name, but it's too late to add it. The voting has started already.

Today's Standings:
1st: Paleo
2nd: Kyoryu
Last (Tie): Triassic and Kaseki

Oh poll's closed too bad ..I was gonna suggest naming him Kamen Rider TheSaurus untill I realized what's wrong with the name :D

Our Kamen Rider will be Kamen Rider Paleo, the dinosaur rider. We have the name and motif, now we need a bio for this rider. We'll start with the identity, age, occupation, and location (country, state, city). We will write a full bio after we get this information first.

Ok. And how do you suggest we go about getting this info? More polls? Or first come, first serve?

Each person will give their information and on the poll will put the name of the users, so people will read their bios and vote for the the username.

Ech. I'd prefer that we come up with villains first, so that we have the option to incorporate them into the main character's backstory AND in to the eventual gimmick.

(Seems to me like age and location hardly matters. I suppose it shouldn't be off limits to tread new ground - because that's sort of the idea of this whole thing - but it seems almost wrong for the main Rider NOT to be a young adult from somewhere in Japan.)