Knight, J. B. (1952). Primitive fossil gastropods and their bearing on gastropod classification. <em>Smithsonian Miscellaneous Collections.</em> 117(13): 1−56, pls. 1−2. page(s): 47 [details]
original descriptionKnight, J. B. (1952). Primitive fossil gastropods and their bearing on gastropod classification. <em>Smithsonian Miscellaneous Collections.</em> 117(13): 1−56, pls. 1−2. page(s): 47 [details]
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