Researchers used microCT to study and re-study arthropod fossils from the early Cambrian in the Chengjiang biota in the Yunnan Province of China. Their latest study shows with unprecedented clarity ...

The most primitive member of the arthropods, which include spiders, insects and crabs, might have evolved a jointed exoskeleton initially as an adaptation for swimming. David Legg at Imperial College ...

Researchers formally describe Helmetia expansa, offering new insights into its anatomy, behavior and evolutionary relationships. For over a century, the Cambrian arthropod Helmetia expansa remained a ...

Charles Darwin famously discussed the “imperfections” of the geological record in his book On The Origin of Species. He correctly pointed out that unless conditions are just right, it’s unlikely for ...