The Solis Limestone in Chihuahua, Mexico contains, near its base, endemic Late Ordovician brachiopods. Silurian brachiopods from the Solis Limestone are represented by cosmopolitan genera; species are ...

Holorhynchus giganteus Kiaer, 1902, a common Late Ordovician (mid-Ashgill) pentameride brachiopod in the Baltic region, Kazakhstan, and southern Tien Shan, is documented for the first time from the ...

Scarce evidence indicates that key evolutionary steps for jawed vertebrates occurred during or before the Silurian period, 444 million to 419 million years ago. Fossil finds pull back the curtain on ...

An ancient shellfish not seen for 425 million years is recreated in vivid 3D images published today, following a unique fossil find in the UK. The 'articulate brachiopod' fossil, found in a quarry in ...

Ancient Cambrian fossils have preserved the oldest known example of parasites in action. More than 500 million years ago in what is now southern China, tubelike parasites clung to the shells of tiny ...

Scientists from the Institute of Vertebrate Paleontology and Paleoanthropology (IVPP) of the Chinese Academy of Sciences have recently discovered two fossil repositories in the early Silurian strata ...