ID number: BIRUG: BU889 Institution: The Lapworth Museum of Geology Definition: Leptaena poulseni Kelly Object type: Brachiopoda Place collected: ENGLAND: West Midlands, Dudley, Wren's Nest Collector: Ketley Chronostratigraphy: SILURIAN: Wenlock Lithology: Much Wenlock Limestone Formation Type, figured or cited: Holotype