Remains of human and animal bones preserved in the earthshower crust are?

Fossils

Fossils are the preserved remains or traces of animals, plants, and other organisms from the past. They are formed when the organisms are buried in sediments, such as mud or sand, and over time, the sediments harden and become rock. Fossils can provide valuable information about the history of life on Earth, including how organisms have evolved and how they have interacted with their environments.