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

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

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

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 ...

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.

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

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

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

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 ...

Samuel Rubin, a junior at Pitzer College in Claremont, California, and colleagues announced the findings at the Experimental Biology 2014 conference in San Diego on Sunday (April 27) and in a paper in ...

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 ...