For over a century, the Cambrian arthropod Helmetia expansa remained a mystery. Discovered by paleontologist Charles ...

Adorned in their macabre attire, the caterpillars can safely navigate spiderwebs undetected. They use their camouflage to ...

A newly identified fossil discovered in the ancient shale of South Africa, has stunned paleontologists with its rare ...

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

Since the 1970s, populations of arthropods—a group of animals that includes exoskeleton-bearing critters such as insects, spiders, centipedes, and millipedes—in the Puerto Rican rainforest have ...

On the other hand, the shells and exoskeletons of species preserved ... "We are now sure she was a primitive marine arthropod, but her precise evolutionary relationships remain frustratingly ...

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

Helmetia expansa belongs to a rare group of early arthropods called concilitergans, close relatives of trilobites. Unlike trilobites, concilitergans lacked calcified exoskeletons, so their remains ...