Highly fossiliferous reef limestone from the 425 million year old Wenlock Series of the Silurian. Wren’s Nest, Dudley, West Midlands.
This reef limestone is approximately 425 million years old from the Wenlock series of the Silurian. It was collected many years ago from Wren's Nest, near Dudley in the West Midlands. It is a site of much renown as Wren’s Nest and Castle Hill contain superb exposures of middle Silurian (Wenlock and lower Ludlow series) rocks, including a definitive section through the Much Wenlock Limestone. The Limestone contains the most diverse and abundant fossil fauna in the British Isles: over 600 species of marine invertebrate, representing some 29 major taxonomic groups, including corals, trilobtes, , brachiopods, gastropods, bivalves & graptolites. It was quarried extensively until 1925 for use in blast furnaces & the production of lime. The locality is now a protected nature reserve.
Each specimen is supplied with a labelled card tray.