Traits taxon details
original description
(of Craterarion pachyostracon D. W. Taylor, 1954 †) Taylor, D.W. (1954). Nonmarine Mollusks From Barstow Formation of Southern California. <em>United States Geological Survey Professional Paper.</em> 254-C: 67-80. page(s): 75, pl. 20, figs 16-20 [details] Available for editors 
basis of record
Pierce, H.G. (1992). The nonmarine mollusks of the Late Oligocene-Early Miocene Cabbage Patch fauna of western Montana. II. Terrestrial gastropod families other than Pupillidae (Pulmonata: Stylommatophora). <em>Journal of Paleontology.</em> 66(4): 610-620. page(s): 614 [details] Available for editors 
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