Traits taxon details
original description
Gordon, M. J. and Yochelson, E. L. (1983). A gastropod fauna from the <i>Cravenoceras hesperium</i> ammonoid zone (Upper Mississippian) in east-central Nevada. <em>Journal of Paleontology.</em> 57: 971–991. page(s): 977, fig. 1 R-U [details] Available for editors 
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