Skin and all! It looks alligatory.
Unlike almost every other dinosaur fossil ever found, the Edmontosaurus named Dakota—a duckbilled dinosaur found in southwestern North Dakota in 1999 and announced to the public last December (see story)—is covered by fossilized skin that is hard as iron.
It’s among just a few mummified dinosaurs in the world, say the researchers who are slowly freeing it from a 65-million-year-old rock tomb.
The fossil is still embedded in blocks of rock. Excavating with toothbrushes takes a long time.