Species: Ankylosaurus magniventris or Denversaurus schlessmani?
Formation: Lance Formation
Location: Weston County, Wyoming
Age: 69-66 mya, Cretaceous
This is an authentic dinosaur bone from the Lance Formation of Wyoming. There is no restoration on this specimen, but there may be a few repaired breaks (truthfully I forgot because I prepped it a while ago ha ha). This specimen has been coated with Paraloid B-72 for added stability.
I’m not 100% sure what exactly this bone is, but my best guess based on shape and presence of an articulation facet on the distal end is that it is a quadrate. This bone has rugose texture like a ceratopsian or ankylosaur bone would, but the shape is wrong for a ceratopsian quadrate, so that leaves ankylosaur. It was tough to find good images of an ankylosaur quadrate, but from what I could see the shape is very similar.