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

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

A mysterious fossilized creature discovered more than a century ago has finally been decoded, offering stunning insights into ...

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

For over a century, the Cambrian arthropod Helmetia expansa remained a mystery. Discovered by paleontologist Charles Doolittle Walcott in 1918, it was ...

“Molting strategies have never been known in any concilitergan,” said Losso. “All arthropods molt their hard exoskeletons to grow, but no one had seen this behavior before in a concilitergan ...

The new study found the characteristics in Helmetia expansa differed from previous studies. It is said that these species had ...

For over a century, scientists have been puzzled by a mysterious fossil called Helmetia expansa, an ancient arthropod from ...