<p>Pentamerus oblongus Sowerby in Murchison, 1839 - fossil brachiopod in dolostone from the Silurian of Ohio, USA.
</p><p>This large brachiopod is an internal mold - the original shell has dissolved away, leaving an impression of the shell's interior surface.
</p><p>Classification: Animalia, Brachiopoda, Articulata (also known as Rhynchonelliformea), Pentamerida, Pentameridae
</p><p>Stratigraphy: lower ~8 feet of the Cedarville Dolomite, upper Niagaran Series (= upper Wenlockian), upper Middle Silurian
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Locality: Ludlow Quarry (owned by Barrett Paving Materials, Incorporated) (address: 3244 South Davis Road), southwest of the town of Ludlow Falls &amp; just east of Brush Creek, northern Union Township, southwestern Miami County, southwestern Ohio, USA (NE1/4 section 7, T6N, R5E, West Milton 7.5' USGS topographic quadrangle) (39° 59' 17.46" North latitude, 84° 20’ 57.92" West longitude)
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/47445767@N05">James St. John</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/jsjgeology/49738082867/">Pentamerus oblongus (fossil brachiopod) (Cedarville Dolomite, Middle Silurian; Ludlow Quarry, Miami County, Ohio, USA) 1</a>