News Paleontology

Old Softy: Tyrannosaurus fossil yields flexible tissue

By Sid Perkins

- More than 2 years ago

Scientists analyzing fragments of a Tyrannosaurus rex‘s leg bone have recovered pliable material containing structures that appear to be cells and blood vessels.

TENDER TOUCH. Demineralized fragments from a Tyrannosaurus rex leg bone contain fibrous areas (arrows) yielding structures that appear to be cells of a type found in living bone.