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 ...

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 ...

Five hundred million years ago, the oceans teemed with trillions of trilobites - a now extinct group of marine arthropods ruling the seas for more than 270 million years. Over 20,000 species have been ...

Scientists have just revealed their findings on what are being described as the most pristine trilobite fossils ever found. The fossils, which show both hard exterior features and soft inner tissues, ...

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 ...

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 ...

Fig. 3: Phylogenetic based family-level body size evolution in Cambrian-Ordovician trilobites. (A) Ancestral state reconstruction of body size. (B) Evolutionary traitgram of trilobite body size. (C) ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. About 250 million years ago, some very important arthropods went ...

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 ...