Thalapagos is a Fanged Wyvern that resembles a marine iguana. Its body is a purple-blue color with a row of large, light blue spikes running down its spine and a long forked tail. Its belly is a brown-grey color resembling stone. It sports light blue claws on each foot, with a singe smaller claw on the back of its front feet. The claws on its front feet are noticeably larger than the back claws. Thalapagos possess sharp bony plates instead of teeth.