Fossil jaws of what is thought to be the oldest Bobbit worm have been found in a 400 million year old rock formation in Ontario. But because they're soft, worms are rarely found in the fossil record.

Paleontologists found roughly 500 of these worms in the 508-million-year-old fossil site in Marble Canyon, part of the Burgess Shale in Kootenay National Park, B.C.

Worm-like fossil This tiny fossil, measuring just a few centimeters, is significant as it is the oldest confirmed ecdysozoan and the only one known from the Precambrian era.

A 165-million-year-old fossil discovered in China is shedding light on the origin of a bizarre group of parasites. Scientists believe the fossil to be an early species of thorny-headed worm. These are ...

Plenty of strange animals have been discovered worldwide, but nothing quite like the new penis worm found in the Grand Canyon.

A stunning fossil find in Greenland rewrites the history of ancient "squid-like" creatures, linking them to modern arrow ...

The Marble Canyon quarry site in B.C.’s Kootenay National Park. A new fossil species of bristle worm has been found at the 508-million-year-old Marble Canyon site in B.C.'s Kootenay National Park.

Scientists found that ancient squid-like fossils are actually early arrow worm fossil relatives, not cephalopods.

They looked like fossils of seaweed – but experts now say they were homes made by a creature called Oesia, which lived an isolated existence inside them about 500 million years ago. Researchers from ...

Photo by HO / THE CANADIAN PRESS A new fossil species of bristle worm has been found at the 508-million-year-old Marble Canyon site in B.C.’s Kootenay National Park.

Life Worm-like fossil is the oldest ancestor of spiders and crustaceans Arthropods belong to an evolutionary branch – the ecdysozoa – that contains about half of all animal species, and the ...