Brachiopods from the Dashaba Formation (Middle Ordovician) of Sichuan Province, South-West China

Special Papers in Palaeontology , published by The Palaeontological Association, is a series of substantial separate works conforming to the style of The Palaeontology Journal . Two issues are published each year and feature high standard illustrations. It studies the Middle Ordovician Dashaba Formation in southern Sichuan Province, China. It investigates the 50m-thick succession of calcareous and silty mudstones with calcareous nodules and limestone lenses which contains rich, diverse, brachiopod fauna. It brings together researchers, geologists and enthusiasts who continue to find material of significance. It includes 16 plates, 2 tables and 17 text-figures.