MolluscaBase taxon details
original description
Hall, James. 1859. Palaeontology: Volume 3. Containing descriptions and figures of the organic remains of the lower Helderberg Group and the Oriskany Sandstone 1855-1859. Part I, Text. 3:1-532. Natural History of New-York, Geological Survey of New-York 3: 1-532
, available online at http://books.google.com/books?id=w20_AAAAcAAJ
page(s): 304, pl. 55, fig. 1a-d [details]