(CNN) — About half a billion years ago, a volcanic eruption near a shallow sea in what’s now Morocco preserved some of the most complete specimens ever found of buglike sea creatures called trilobites ...

At up to 30cm long and armed with spines for crushing and shredding food, we’ve identified a previously unknown creature that would have been a giant among its neighbours in the waters off modern-day ...

Artistic reconstruction of two species of trilobite an instant before burial in a flow of volcanic ash 510 million years ago. Researchers have described some of the best-preserved three-dimensional ...

Trilobites lived in the Paleozoic era, approximately 540 million to 252 million years ago, and were extremely abundant, with over 20,000 known species. However, until now it has not been revealed what ...

Fossil trackways are simultaneously wonderful and frustrating things. They are preserved bits of prehistoric behavior, but, unless an animal actually dies and becomes preserved in its tracks, ...

Add Yahoo as a preferred source to see more of our stories on Google. Richard Fortey, head of palaeontology at the Natural History Museum - Alamy ​Richard Fortey, who has died aged 79, ...

With all of the news about irreversible global warming and environmental collapse, it’s time to take a look at one of the Earth’s mega-survivors: the versatile Trilobite. Throughout the Paleozoic era, ...

Fossils unearthed at a slate quarry in northern Portugal include those of the largest known trilobites, as well as immense assemblages — some a thousand strong — that suggest the creatures exhibited ...

A recent study shows that marine oxygen levels were crucial to the evolution of early Paleozoic trilobite body size, suggesting that oxygen may have influenced the evolution of other animals' body ...

For the past two years, Western Illinois University Assistant Professor of Geology Thomas Hegna has been part of a three-member team conducting research on what are believed to be the first-ever ...

What are trilobites, and what do their fossils reveal about the growth rate of ancient trilobita? Learn how they compare to today’s slow-growing crustaceans. An animal’s size shapes the way that it ...

Among fossils, trilobites are rock stars. They are adorable (as stony arthropods go), with a segmented shape distinctive enough to be a common logo. But they’re also fascinating because there are so ...