Fig.1: Tempo and mode in the body size evolution of Cambrian-Ordovician trilobites. Changes in maximum size (red) and mean size (blue) for each time slice, with lines and shading representing the mean ...

Researchers describe unusual trilobite fossils prepared as thin sections showing the 3D soft tissues during enrollment. The study reveals the soft undersides of enrolled trilobites and the ...

We performed a tree-based analysis of trilobite postembryonic development in a sample of 60 species for which quantitative data on segmentation and growth increments between putative successive ...

Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment. Rachael has a degree in Zoology from the ...

Since the age of 14, Fortey, now a paleontologist and author (Life: A Natural History of the First Four Billion Years of Life on Earth), has been obsessed with trilobites, which survived for a total ...

Trilobites are one of the most common creatures found in the fossil record, but now some particularly well-preserved specimens have revealed some intriguing new details. It turns out that trilobites ...

Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment.View full profile Rachael has a degree in Zoology ...

A newly discovered 460-million-year-old trilobite showed signs of being shaped and flattened—the first indication that ancient Romans purposely collected and modified the tiny fossils. A computer ...

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 ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. About 250 million years ago, some very important arthropods went ...

Enrollment in arthropods is an important defensive strategy that provides protection against predation. A – C, Enrolled Ceraurus from the Walcott-Rust Quarry. D – F, Enrolled Flexicalymene from the ...