MolluscaBase taxon details
Orthoceratoidea †
Orthoceratia † · alternative representation
- Order Actinoceratida †
- Order Dissidoceratida †
- Family Lamellorthoceratidae Teichert, 1961 †
- Order Lituitida †
- Order Orthoceratida †
- Order Pseudorthoceratida †
- Order Rioceratida †
- Genus Slemmestadoceras Kröger, 2008 †
- Genus Uralharuspex Ceccolini & Cianferoni, 2023 †
- Order Actinoceroidea † accepted as Actinoceratida †
- Order Astroviida † accepted as Lamellorthoceratidae Teichert, 1961 † (unaccepted > superseded rank)
- Genus Haruspex Shimansky, 1968 † accepted as Uralharuspex Ceccolini & Cianferoni, 2023 † (unaccepted > junior homonym, invalid: junior homonym of Haruspex J. Thomson, 1864; Uralharuspex is a replacement name)
- Order Lituitiformes † accepted as Lituitida † (unaccepted > misspelling - incorrect original spelling)
- Order Actinocerida † represented as Actinoceratida †
- Order Dissidocerida † represented as Dissidoceratida †
- Order Orthocerida † represented as Orthoceratida †
marine, brackish, fresh, terrestrial
fossil only
Not documented
MolluscaBase eds. (2026). MolluscaBase. Orthoceratoidea †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1600610 on 2026-05-06
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taxonomy source
Hoffmann, R.; Howarth, M. K.; Fuchs, D.; Klug, C.; Korn, D. (2022). The higher taxonomic nomenclature of Devonian to Cretaceous ammonoids and Jurassic to Cretaceous ammonites including their authorship and publication. <em>Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen.</em> 305(2): 187-197., available online at https://doi.org/10.1127/njgpa/2022/1085 [details] Available for editors 
[request]
replacement name source King, A. H.; Evans, D. H. (2019). High-level classification of the nautiloid cephalopods: a proposal for the revision of the Treatise Part K. <em>Swiss Journal of Palaeontology.</em> 138(1): 65-85., available online at https://doi.org/10.1007/s13358-019-00186-4
page(s): suggest Orthoceratia (the suffix -oidea being used for superfamilies) [details] Available for editors [request]
[request]replacement name source King, A. H.; Evans, D. H. (2019). High-level classification of the nautiloid cephalopods: a proposal for the revision of the Treatise Part K. <em>Swiss Journal of Palaeontology.</em> 138(1): 65-85., available online at https://doi.org/10.1007/s13358-019-00186-4
page(s): suggest Orthoceratia (the suffix -oidea being used for superfamilies) [details] Available for editors
[request]
