‘Skin is the largest organ of your body. It helps maintain a person’s or animal’s homeostasis (a relatively stable equilibrium), insulation, and sensory functions. As such, it is very complex. Creation scientists predict that wherever skin is found in the fossil record, it would be 100% skin, unique and functional to that animal group.

Recently, a tiny piece of amniote, or terrestrial vertebrate, epidermal skin was discovered in an infilled cave system at Richards Spur, Oklahoma.’https://www.icr.org/article/fossilized-reptile-skin-still-reptile-skin/