Over 300 million years, trilobites evolved a diverse and successful array of forms while maintaining a simple, common body plan. Related Article Three vertical lobes BODY PLAN Trilobites had three ...

About 513 million years ago, a creature curled up like a pill bug to protect itself from predators, a recently-discovered fossil suggests. The new discovery is the oldest evidence that trilobites ...

New research helps explain how some ancient species hunted and fed, and highlights the shell-crushing power of one large trilobite. By Cara Giaimo Hundreds of millions of years ago, trilobites filled ...

Molting, that periodic ritual in which arthropods shed and replace their outer skeletons, can be a dangerous time for the creatures. Just ask the trilobite. Research published by a Michigan State ...

The Burgess Shale in British Columbia is renowned for its exceptional preservation of soft tissues in fossils, including limbs and guts. While trilobites are abundant in the fossil record thanks to ...