Call for help to ID, a piece of Dino Bone with special marks on the bone surface. It's roughly 15 cm long, and was dug out from Southern China, near Myanmar. It's with very little surrounding rocks. Gut feeling it's part of woodstone or tree fossil, then figured out there is layer of bone shell, and the marks on the surface seems very distinctive for bone fossils, maybe from dinosaur skin. Look forward to your comments,
a new memeber of the forum, thanks.