Ventral view of Mucrospirifer, a fossil brachiopod, showing the characteristically wing-like shell. This Devonian specimen from Ohio is 3.5cm wide. Brachiopod hard parts have excellent preservation ...

Rich brachiopod fossils dating back 470 million years to the Ordovician period were discovered in Zigui county, Central China's Hubei Province. Experts suggest these fossils provide evidence for ...