MolluscaBase name details
Orthoceras (Euorthoceras) ignotum Foerste, 1889 †
1884284 (urn:lsid:marinespecies.org:taxname:1884284)
unaccepted > superseded combination
Species
marine, brackish, fresh, terrestrial
fossil only
Foerste, A. F. (1889). Notes on Clinton Group fossils, with special reference to collections from Indiana, Tennessee and Georgia. <em>Proceedings of the Boston Society of Natural History.</em> 34: 263-355.
page(s): 279, pl. 7, fig. 4 [details]
page(s): 279, pl. 7, fig. 4 [details]
Type locality contained in Indiana
type locality contained in Indiana [details]
MolluscaBase eds. (2026). MolluscaBase. Orthoceras (Euorthoceras) ignotum Foerste, 1889 †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1884284 on 2026-05-28
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original description
Foerste, A. F. (1889). Notes on Clinton Group fossils, with special reference to collections from Indiana, Tennessee and Georgia. <em>Proceedings of the Boston Society of Natural History.</em> 34: 263-355.
page(s): 279, pl. 7, fig. 4 [details]
additional source 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, pl. 32, fig. 4, pl. 36, fig. 6a-c, fig. 5-7 on p. 540 [details]
new combination reference 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): 279, pl. 7, fig. 4 [details]
additional source 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, pl. 32, fig. 4, pl. 36, fig. 6a-c, fig. 5-7 on p. 540 [details]
new combination reference 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]
Present Inaccurate Introduced: alien Containing type locality
