and by Cambrian Age 3, ecosystems flourished with a marked increase in animal diversity. One pivotal group in this ...

Spiders, crabs, and other arthropods evolved from a group of animals that underwent a burst of diversity around 500 million ...

After seeing more of the worm-like squiggles ... ecdysozoans would really come to dominate the marine ecosystem in the Cambrian," he said.

Cambrian sediments found in Canada, Greenland, and China have yielded rarely fossilized soft-bodied creatures such as marine worms buried during undersea mud avalanches. Representing the oldest ...

After seeing more of the worm-like squiggles the team paid closer ... would really come to dominate the marine ecosystem in the Cambrian,” he said. The paper is titled “An Ediacaran bilateran ...

Dr Jakob Vinther, the lead researcher of the study, suggests that these Timorebestia might be distant relatives of our modern-day arrow worms. They're much smaller than their Cambrian ancestors ...

FROM 508 MILLION YEARS AGO TO TODAYPreserved in the Burgess Shale of British Columbia, the worm Canadia spinosa was part of an explosion in biodiversity during the Cambrian period that gave birth ...

That makes it equivalent in importance to some of the top carnivores in modern oceans, such as sharks and seals back in the Cambrian period." The worms are thought to have been some of the largest ...

After seeing more of the worm-like squiggles the team paid closer ... would really come to dominate the marine ecosystem in the Cambrian," he said.