Rensellaerina medioplicata
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| Rensellaerina medioplicata. L. Devonian. Birdsong Shale, Decatur County, TN. Described by C. O. Dunbar in 1917, this species is considered rare in the Birdsong. Pictured here: brachial and pedicle view of the same specimen (about 25mm in length). |
L'Isola dei Fossili Felici 
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