ID number: BIRUG: BU805 Institution: The Lapworth Museum of Geology Named collection: Holcroft Collection Definition: Encrinurus tuberculatus (Buckland) Object type: Trilobita Place collected: ENGLAND: West Midlands, Dudley, tunnel under Wren's Nest Collector: Holcroft Chronostratigraphy: SILURIAN: Wenlock Lithology: Wenlock Limestone Type, figured or cited: Figured