Cartilage cells, chromosomes and DNA preserved in 75 million-year-old baby duck-billed dinosaur

In a paper published online in National Science Review, an international team of scientists present evidence of fossilized cell nuclei and chromosomes within preserved cartilage in a baby duck-billed dinosaur. This dinosaur belongs to Hypacrosaurus and comes from a nesting ground discovered in 1988 by paleontologist Jack Horner in Late Cretaceous sediments of Northwest Montana.