Edmontosaurus mummy AMNH 5060

The Edmontosaurus mummy AMNH 5060, nicknamed the AMNH mummy, is an exceptionally well-preserved fossil of a dinosaur in the collection of the American Museum of Natural History (AMNH). Discovered in 1908 in the United States near Lusk, Wyoming, it was the first dinosaur specimen to be found encased in skin impressions.

Source: Wikipedia — Edmontosaurus mummy AMNH 5060 (CC BY-SA 4.0)