This tiny fossil, measuring just a few centimeters, is significant as it is the oldest confirmed ecdysozoan and the only one ...

They date back to the Precambrian, with some more than ... While the vast majority of Ediacaran fossils from this period seemed completely alien, this one seemed instantly familiar ...

Fossils of the largest known among them ... is not unlike one of the first life forms that appeared in the Precambrian era. Photograph by Joel Sartore, National Geographic Photo Ark The earliest ...

During the Cambrian period (541 million to 485.4 million ... unknown branch of life It's almost unheard of for Precambrian fossils to resemble forms seen in animals alive today, so the discovery ...

Under this hypothesis, the absence of Precambrian sponge fossils can be attributed to poor ... boundary are extremely disparate. The Ediacaran Period is dominated by the enigmatic and ...

However, the fossil found, which would be a 555-million-year-old worm, would represent the oldest member of the aforementioned superphylum and the only one from the Precambrian period The fossil ...

A team has now identified the oldest known ecdysozoan in the fossil record and the only one from the Precambrian period. Everyone has a past. That includes the millions of species of insects ...