With eyes like searchlights, a mouth of razor-sharp plates, and grasping appendages ready to snatch anything in reach, this ...

Photograph by James L. Amos The iconic arthropods of the Cambrian were the trilobites, which left a huge number of fossils. Trilobites had flattened, segmented, plated bodies that helped to ...

The most familiar and abundant species of trilobites in North America may have followed an exotic survival strategy. Elrathia kingii, found in Middle Cambrian formations in Utah, lived exclusively in ...

Earth’s history is filled with incredible milestones, and the emergence of the first animals is one of the most captivating.

Focused on Cambrian fossils, the study reanimates a species long trapped in the pages of forgotten paleontology.

This is an illustration of marine fossils that have existed since the Cambrian. Represented taxa include brachiopods, trilobites, ammonites, bivalves, and decapods. Disclaimer: AAAS and EurekAlert!

And what a difference it made. In the sightless world of the Early Cambrian, vision was tantamount to a superpower. Trilobites became the first active predators, able to seek out and chase down ...

We study trilobites from four periods of the Palaeozoic: the Cambrian, Ordovician, Silurian and Devonian. Our research covers trilobite taxonomy, phylogeny, functional morphology, biogeography, and ...

Researchers formally describe Helmetia expansa, offering new insights into its anatomy, behavior and evolutionary relationships.