MolluscaBase name details
Protokionoceras trusitum (J. M. Clarke & Ruedemann, 1903) †
1868845 (urn:lsid:marinespecies.org:taxname:1868845)
unaccepted > superseded combination
Species
marine, brackish, fresh, terrestrial
fossil only
(of Orthoceras trusitum J. M. Clarke & Ruedemann, 1903 †) Clarke, J. M.; Ruedemann, R. (1903). Guelph fauna in the state of New York. <em>New York State Museum Memoirs.</em> 5: 1-100., available online at https://www.biodiversitylibrary.org/page/20466174
page(s): 77, pl. 10, fig. 25, 26, pl. 13, fig. 1-10 [details]
page(s): 77, pl. 10, fig. 25, 26, pl. 13, fig. 1-10 [details]
MolluscaBase eds. (2026). MolluscaBase. Protokionoceras trusitum (J. M. Clarke & Ruedemann, 1903) †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1868845 on 2026-07-27
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original description
(of Orthoceras trusitum J. M. Clarke & Ruedemann, 1903 †) Clarke, J. M.; Ruedemann, R. (1903). Guelph fauna in the state of New York. <em>New York State Museum Memoirs.</em> 5: 1-100., available online at https://www.biodiversitylibrary.org/page/20466174
page(s): 77, pl. 10, fig. 25, 26, pl. 13, fig. 1-10 [details]
page(s): 77, pl. 10, fig. 25, 26, pl. 13, fig. 1-10 [details]
