MolluscaBase taxon details
Ordogeisonoceras R.C. Frey, 1995 †
1871922 (urn:lsid:marinespecies.org:taxname:1871922)
accepted
Genus
Orthoceras amplicameratum J. Hall, 1847 † accepted as Ordogeisonoceras amplicameratum (J. Hall, 1847) † (type by original designation)
marine, brackish, fresh, terrestrial
fossil only
neuter
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): P39 [details] Available for editors
[request]
page(s): P39 [details] Available for editors
MolluscaBase eds. (2026). MolluscaBase. Ordogeisonoceras R.C. Frey, 1995 †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1871922 on 2026-08-07
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original description
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): P39 [details] Available for editors
[request]
page(s): P39 [details] Available for editors