Petrified Chains of 'Poop' Turn Out to Be One of Earth's Oldest Skeletons
When you buy through links on our website , we may earn an affiliate commission . Here ’s how it works . Mysterious fossils found all over the world belong to brute that built their own skeleton more than 550 million class ago . Palaeopascichnus linearisis among the cosmos ’s oldest skeletal creatures , concord to new research published in the October consequence of the journalPrecambrian Research . These tiny globular , ocean bottom - dwellers may have been amoeba - like puppet that fall bits of sand and deposit around themselves to create their own exoskeleton ....