The Bones of a Bird like Lizard

Type Fossil
Rarity 💎💎💎💎💎
How to discover Demon bonesDemon bones
From the head to the body it has the appearance of a lizard, but the arms are like bird's wings. For some reason it appears to be stone. Their is a wing-like pattern around the body, and the entire body appears to have been covered in feathers. I've neither seen nor heard of such an animal. Might it be a new species?