MolluscaBase taxon details
Euorthoceras Foerste, 1893 †
1884275 (urn:lsid:marinespecies.org:taxname:1884275)
accepted
Genus
Orthoceras (Euorthoceras) ignotum Foerste, 1889 † accepted as Euorthoceras ignotum (Foerste, 1889) † (type by subsequent designation)
Orthoceras (Euorthoceras) Foerste, 1893 † · unaccepted > superseded rank
- Species Euorthoceras ignotum (Foerste, 1889) † (accepted > unreplaced junior homonym, original binomen is an unreplaced junior homonym, of Orthoceras ignotum Barrande, 1868)
- Species Euorthoceras virgulatum (J. Hall, 1852) †
- Species Euorthoceras erraticum (Foerste, 1893) † accepted as Treptoceras erraticum (Foerste, 1893) † (unaccepted > superseded combination)
marine, brackish, fresh, terrestrial
fossil only
neuter
(of Orthoceras (Euorthoceras) Foerste, 1893 †) Foerste, A. F. (1893). Fossils of the Clinton group in Ohio and Indiana. <em>Report of the Geological Survey of Ohio.</em> 7(5): 516-597.
page(s): 539 [details]
page(s): 539 [details]
MolluscaBase eds. (2026). MolluscaBase. Euorthoceras Foerste, 1893 †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1884275 on 2026-06-13
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original description
(of Orthoceras (Euorthoceras) Foerste, 1893 †) Foerste, A. F. (1893). Fossils of the Clinton group in Ohio and Indiana. <em>Report of the Geological Survey of Ohio.</em> 7(5): 516-597.
page(s): 539 [details]
status source Teichert, C. (1940). Contributions to nautiloid nomenclature. <em>Journal of Paleontology.</em> 14: 590-597., available online at http://www.jstor.org/stable/1298712
page(s): 592 [details] Available for editors
[request]
subsequent type designation Frey R.C. (1995). Middle and Upper Ordovician nautiloid cephalopods of the Cincinnati Arch region of Kentucky, Indiana, and Ohio. <em>U.S. Geological Survey Professional Paper.</em> 1066:1-126., available online at https://doi.org/10.3133/pp1066p
page(s): 45 [details] Available for editors [request]
page(s): 539 [details]
status source Teichert, C. (1940). Contributions to nautiloid nomenclature. <em>Journal of Paleontology.</em> 14: 590-597., available online at http://www.jstor.org/stable/1298712
page(s): 592 [details] Available for editors
[request]subsequent type designation Frey R.C. (1995). Middle and Upper Ordovician nautiloid cephalopods of the Cincinnati Arch region of Kentucky, Indiana, and Ohio. <em>U.S. Geological Survey Professional Paper.</em> 1066:1-126., available online at https://doi.org/10.3133/pp1066p
page(s): 45 [details] Available for editors
[request]