Hadrosaur dinosaur skin impression Iguanodon and which may have been

and which may have been used for species or sexual identification

the calyx (or head) which contains the mouth parts and internal organs

a locality dated to the early Permian of about 296 million years ago

of northern Montana

Hadrosaur dinosaur skin impression Iguanodon and which may have beenDinosaur skin impressions are quite rare. We often find bone, which tells us about the osteology of these ancient animals, however typically the soft parts of the animals decayed and were not preserved. Skin impressions are rare, but when found, and, if carefully prepared, they help us to more accurately envision what they would have looked like in life. This hadrosaur skin impression is from an original specimen. Age: Late Cretaceous Maastrichtian