A breakthrough discovery in Utah has revealed a 500-million-year-old chelicera fossil that is the oldest known spider and ...

It had been a long day of teaching for Rudy Lerosey-Aubril. As a reward, he returned to cleaning an intriguing Cambrian arthropod fossil he had recently received for review. At first, the specimen ...

Learn how a fossil from Utah’s Wheeler Formation reveals where early spider relatives lived, how quickly complex animal body ...

Rudy Lerosey-Aubril A tiny claw in a 500-million-year-old fossil just rewrote the origin story of spiders. After a full da ...

Named after French explorer Jacques Cousteau, Megachelicerax cousteaui is the oldest of its kind ever found, not to mention ...

What started as routine fossil cleaning turned into a major scientific surprise when researchers uncovered a tiny claw in a ...

A Cambrian fossil has been identified as the oldest known member of the chelicerates, a group that includes spiders and scorpions. The specimen shows the earliest known example of a chelicera, a ...

Pincers found on a tiny fossil that lived 500 million years ago could change how scientists understand the origin of spiders.

(CN) — A newly described fossil from the Cambrian period is reshaping scientists’ understanding of how some of today’s arthropods first evolved. In a recent study published in Nature, researchers from ...