Two new genera, Poliellaites and Piochella, and six new species, Eokochaspis? cabinensis, Nyella? plana, Poliellaites gloriosa, Piochella peasleensis, Poliella ovala, and Stephenaspis highlandensis, ...

The Kaibab Limestone in northern Arizona, southern Utah, and southern Nevada contains an unusually extensive fossil record of Permian (Leonardian) trilobites which is here interpreted with respect to ...

The extinct arthropods date back at least 490 million years. By Laura Baisas Published Nov 24, 2023 9:00 AM EST Get the Popular Science daily newsletter💡 ...

Hundreds of millions of years before anthropogenic climate change was ever a thing, life on Earth suffered mass extinctions due to climate change brought on by natural causes. Even so, there were ...

Fossils collected more than 150 years ago show that the techniques some creatures use for defensive curling have not changed in millions of years. By Jack Tamisiea When the going got tough in the ...

Scientists have worked out how one unusual species of trilobite -- an ancient, sea-dwelling relative of spiders and lobsters -- was able to defend itself against predators and survive a bumpy ride as ...

Boulder, Colo., USA: Thanks to their easily fossilized exoskeleton, trilobites largely dominate the fossil record of early complex animal life. However, trilobite appendages and the anatomy of the ...

We know a great deal about the diversity, lifestyles and evolution of these iconic invertebrate fossils. More than 22,000 species of trilobite have been named. This is largely because the trilobite ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Trilobites were one ...

A fossil bed in the High Atlas Mountains of Morocco is allowing new insights into the anatomies of arthropods that lived a half-billion years ago. By Jack Tamisiea Jack Tamisiea has previously ...