User:Abyssal/Portal:Devonian/DYK/2

Restoration of Hastocularis argus.

• ... that four-eyed harvestmen known as Tetrophthalmi once roamed the Earth?
• ...that eighty years on, scientists are still debating whether the Palæozoic fossils known as Chitinozoans (SEM image pictured) represent plants, animals or eggs?
• ... that an anomalocaridid, a bizarre Cambrian organism, has been found 100 million years later, in the Devonian era?
• ... that the extinct Gigantoproductus giganteus was the largest known species of brachiopod?
• ... that fossils of the extinct bivalve family Praenuculidae have been found on every continent except Antarctica?