MolluscaBase taxon details
original description
(of Fusus subheptagonus A. d'Orbigny, 1850 †) Orbigny, A. D. d'. (1850). <i>Prodrome de paléontologie stratigraphique universelle des animaux mollusques et rayonnés, faisant suite au cours élémentaire de paléontologie et de géologie stratigraphiques. Vol. 2</i>. 427 pp. Paris: Masson [November 1850]., available online at https://www.biodiversitylibrary.org/page/41091877
page(s): 228 [details]
original description
(of Fusus heptagonus J. De C. Sowerby, 1832 †) Sowerby, J. De C. (1832). Table of Fossils found in the Gosau Deposit and its Equivalents in the Alps. In: Sedgwick, A. & Murchison, R. I. (eds), A sketch of the structure of the Eastern Alps; with sections through the newer formations on the northern flanks of the chain, and through the Tertiary deposits of Styria. <em>Transactions of the Geological Society of London, 2nd series.</em> 3(2): 417-420, pls. 35-40., available online at https://www.biodiversitylibrary.org/page/36239676
page(s): 418, pl. 39 fig. 23 [details]