Traits taxon details
original description
(of ) Martin, G. C. (1904). Mollusca. Cephalopoda. Gastropoda. Amphineura. Scaphopoda. In: Clark, W. B. (Ed.) Miocene. Maryland Geolological Survey, Baltimore, pp. 130-274, pls 39-56., available online at https://www.biodiversitylibrary.org/page/47349094, https://www.biodiversitylibrary.org/page/47366749 page(s): 168 [details]
basis of record
Petuch, E. J. (2003 ["2004"]). Cenozoic Seas: The view from eastern North America. CRC Press, Boca Raton, xvi + 308 pp. [details] Available for editors 
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