Girty, G. H. (1910). New genera and species of carboniferous fossils from the Fayette-Ville Shale of Arkansas. <em>Ann.N.Y.Acad.Sci.</em> 20: 189-238. page(s): 231 [details]
original descriptionGirty, G. H. (1910). New genera and species of carboniferous fossils from the Fayette-Ville Shale of Arkansas. <em>Ann.N.Y.Acad.Sci.</em> 20: 189-238. page(s): 231 [details]
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