[806mtson]

I have just noticed something. Revice's Left Pectoral has the T-Rex Stamp facing forward and on "Kyoryudai", the stamp on the Left Pectoral is reversed. I think that Revice represents a Living Dinosaur while "Kyoryudai" represents a Dinosaur Skeleton.
Meanwhile, the Rider's name, Revice, is based, at least partially, off the word "reverse". Like a Stamp's Face. A Stamp has the reversed version of what the stamp stamps on the stamp so the stamp stamps the original stamp (yeah, this is just a bit of comedy).
Meanwhile, if you look at Kyoryudai's Waist, it doesn't have a driver like Revice's. It has a simple buckle.
This further confirms the "Reversed Kamen Rider W" rumors. There is Revice as the living Dinosaur Flesh and Kyoryudai as the Skeleton. You can especially tell this as Kyoryudai has a motif of a Dinosaur Skeleton. So, One gimmick gives 2 Riders, well 1 Rider and their other buddy form, the same powers. Like Mighty Brothers XX.
No wonder the Collectable Gimmicks for this line are based upon Stamps. There is the Stamp and the Thing Stamped.