The discovery site has a really nice picture of a lizard that bears a striking resemblance to the dragon.
I think this is the real dragon. Can you imagine the guy woke up to find this lizard on his face and screamed like a girl at the top of his lungs? Guess what he told his friends who came to his help? I bet you can.
There you go, the source of all those dragon stories.
I first found this on Amanda Blain's Google+ post.