MolluscaBase name details
original description
(of Fusus (Hemifusus) engonatus Heilprin, 1881 †) Heilprin, A. (1881b) On some new species of Eocene Mollusca from Clarke Co., Ala., with some points as to the stratigraphic positions of the beds containing them. Proceedings of the Academy of Natural Sciences of Philadelphia, 32, 364–375, pl. 20. page(s): 372 [details]
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