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, ...

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 ...

For the past two years, scientists have been conducting research on what are believed to be the first-ever discovered trilobite eggs paired with a fossil of the segmented creature. For the past two ...

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 ...

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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 ...

One of the enduring mysteries of the beloved but long-extinct animals called trilobites is this: how did they reproduce? Despite long searching, no eggs or obvious reproductive equipment has ever ...

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 ...

The orderly collection of ancient arthropods suggests that complex social behavior goes way back in the history of life on Earth. By Becky Ferreira See more of our coverage in your search ...

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 ...

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, ...

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 ...