Awesome stegosaurus skeleton dinosaur transfo
 

So when I went home over break I found this awesome transforming toy I had, but I have no clue what it is (and I'm dying to know.) I unfortunately have no clues, and there are no visible markings on it. I've Googled around a bunch and I can't find it.

(images mirrored here: https://www.dropbox.com/sh/tzpspktm02rzau3/eZFLTUh5Fr )

And in case it's not clear from the photos, it opens along the spine and everything flips in/out.

So, does anyone have any ideas? Huge thanks and a million Internet points to anyone who does :-)

I had a tyrannosaur from the same line, but I have no idea where it originated. It was a random, unpackaged gift, so there was no trademarking for me to look at.

Dino puzzled eggs

Hogwild Dino puzzled eggs

Looks to be a Tamagora, of which there are tons of real ones and also tons of bootlegs. Some of the bootlegs are animals that are not even done in the official line. Incidentally, Mattel took a bunch of the original Tamagora from Japan and made them into "Meteorbs" for the 80s MOTU line.