Originally listed at $400

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

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#164120

Both are professionally prepared. The brachiopod is mounted to the matrix with adhesive. The brachiopod is not original to the formation. Natural flaking of the slate matrix of both. Phacops trilobite is well preserved and has nice texture. The other trilobite is intact. Inventory labels on the verso of both matrices.