To explore the macroevolutionary potential of trilobites, the researchers compiled an extensive dataset of body size for Cambrian and Ordovician forms, covering 1,091 genera and representing over 90% ...

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 ...

The researchers' idea that Earth once had rings comes from reconstructions of Earth's plate tectonics from the Ordovician period—which ran between 485.4 million years and 443.8 million years ago ...

Trilobite researchers still chatter about the study “Frontal auxiliary impressions in the Ordovician trilobite Dalmanitina Reed, 1905 from the Barrandian area, Czech Republic“, published a few ...

In reality, these petrified insects are the Ordovician trilobites Merlinia. This case of mistaken identity comes from Merlinia specimens where the tail has broken away from the body and fossilised, ...

Ancient Milwaukee was home to coral reefs and trilobites. The Cambrian period was followed by the Ordovician period (485 to 443 million years ago) and the Silurian period (443 to 420 million years ...

Texas State researcher helps discover new species of trilobites, ... co-authored “Trilobites of Thailand's Cambrian–Ordovician Tarutao Group and their geological setting,” in the journal ...

Trilobites resemble woodlice, otherwise ... One of the plausible reconstructions of northern Gondwana around the time of the transition between the Cambrian and Ordovician periods around 490 ...

Using synchroton radiation X-ray microtomography, researchers from Charles University in the Czech Republic have pieced together the last supper of the Ordovician trilobite, Bohemolichas incola.

Some 465 million years ago, an armored pill-bug-like creature called a trilobite scuttled across an ancient seafloor and apparently scarfed up anything it could, according to a new analysis of its ...