Dino with ‘perfect and unique’ butthole also had the oldest belly button known to science

Paleontologists have discovered the oldest belly button known to science — and the first ever found on a non-avian dinosaur — on a 125 million-year-old fossil of a parrot-beaked biped in China.

The faint navel mark belongs to a reptile in the genus Psittacosauruswhich lived during the Cretaceous period (145 million to 66 million years ago). Scientists spotted the long, thin trace of an umbilical scar when they exposed the fossil to a concentrated beam of laser light. The scar is a slight misalignment in the pattern of skin and scales over the dinosaur’s abdomen and is the reptile equivalent of a mammalian belly button.

Leave a Comment