MolluscaBase name details
original description
Wahlman G.P. (1992). Middle and Upper Ordovician symmetrical univalved mollusks (Monoplacophora and Bellerophontina) of the Cincinnati Arch region. <em>United States Geological Survey Professional Paper.</em> 1066-O: 1-213.
page(s): 100, pl. 4, fig. 15-17; pl. 8, fig. 11-20 [details] Available for editors [request]