For years, a mysterious fossil specimen defied categorization, until one paleontologist made a surprising discovery.

Paleontologists in England discovered the existence of a new marine species that roamed the Earth before the dinosaurs and ...

A 444 million-year-old arthropod fossil, discovered 25 years ago, has been identified. The fossil, named Keurbos susanae, was ...

In place of oxygen, the ocean was full of hydrogen sulfide, which the researchers believe may have caused the organism to fossilize inside out. Read More: A New 450-Million-Year-Old Arthropod Was ...

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

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

Arthropods are all around us today. While several creatures that fall under the designation, such as spiders and insects that ...

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

The fossil, dated to about 444 million years ago, contained a new species of arthropod that fossilized inside-out, according to a paper published in the journal Palaeontology last week.

Rensselaer Polytechnic University biologist Bradford Lister first collected data about arthropod biomass in Puerto Rico’s Luquillo rainforest in 1976. He and coauthor Andres Garcia, a biologist at the ...

More information: Anne E. Johnson et al, Predation of spotted lanternfly (Lycorma delicatula) by generalist arthropod predators in North America, Arthropod-Plant Interactions (2025). DOI: 10.1007 ...

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