The well-preserved fossil that was once a dinosaur's butt bone (sacrum) was excavated from South Dakota's Hell Creek ...

For many years, it was widely believed that fossils no longer contained any original organic molecules as the fossilization ...

The sacrum and the coccyx each consist of multiple bones that fuse over time. L5-S1 consists of the last bone in the lumbar ...

For many years, it has been widely believed that fossils no longer contained their original organic molecules as the fossilization process was thought to destroy them. Now, a groundbreaking study, led ...