North America, Midwestern United States, Ohio, Paleozoic period, ca. 300 to 400 million years ago. A pair of two slate matrixes containing a trilobite fossil in each and a brachiopod that is prepared and mounted on top of one matrix. This brachiopod is specifically a Paraspirifer bownockeri, here presented with closed valves. The exterior has developed glittering pyrite which certainly adds some allure to this prehistoric mollusk! Almost directly under the brachiopod is a trilobite fossil, specifically a Phacops rana milleri, that has retained much of its texture; note those bumpy eye facets! The second slate matrix also contains a trilobite fossil of a species known as Flexicalymene meeki. The ridges of the spines in this specimen are also nicely preserved. Size matrix of single trilobite: 5" L x 3" W (12.7 cm x 7.6 cm); matrix with brachiopod: 3.25" L x 3" W (8.3 cm x 7.6 cm) Display stand shown in photos is for photography purposes only. Provenance: ex-Stein collection, Bloomfield Hills, Michigan, USA, acquired prior to 2010 All items legal to buy/sell under U.S. Statute covering cultural patrimony Code 2600, CHAPTER 14, and are guaranteed to be as described or your money back. A Certificate of Authenticity will accompany all winning bids. PLEASE NOTE: Due to recent increases of shipments being seized by Australian & German customs (even for items with pre-UNESCO provenance), we will no longer ship most antiquities and ancient Chinese art to Australia & Germany. For categories of items that are acceptable to ship to Australia or Germany, please contact us directly or work with your local customs brokerage firm. Display stands not described as included/custom in the item description are for photography purposes only and will not be included with the item upon shipping. #164120