Stringocephalus is an extinct genus of large brachiopods; between 388.1 to 376.1 million years old^[1] they are usually found as fossils in Devonian marine rocks. Several forms of the genus are known; they may be found in western North America, northern Europe (especially Poland), Asia and the Canning Basin of Western Australia. Several different types are known; they share a well-developed, curved structure shaped like a beak. Some of the largest specimens discovered to date have been found in China.