Traits name details
original description
(of Ecphora tricostata G. C. Martin, 1904 †) Martin, G. C. (1904). Mollusca. Cephalopoda. Gastropoda. Amphineura. Scaphopoda. In Clark, W.B. (Ed.) <i>Miocene</i>. Maryland Geolological Survey, Baltimore, pp. 130–270, pls 39–63. , available online at https://www.biodiversitylibrary.org/page/47349094, https://www.biodiversitylibrary.org/page/47366749 page(s): 209, pl. 52 figs 5-8 [details]
basis of record
Petuch, E. J. & Berschauer, D. P. (2023). The Ecphoras. Iconic Fossils of Eastern North America. CRC Press, Boca Ratón, xii + 207 pp. [details] Available for editors 
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