Species
Orthoceras arcuolyratum Schmidt, 1858
Taxon ID: 9891
Fossil group: Cephalopoda
Belongs to: Orthoceras
Other version of taxon: Striatocycloceras foerstei
Stratigraphic distribution: Vormsi Stage (header.f_taxon_age_within 450.8 – 449.8 header.f_taxon_age_within_unit)
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Klassificering
| Organism group | Biota |
| Domain | Eukaryota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Cephalopoda |
| Subclass | Orthoceratoidea |
| Order | Orthocerida |
| Suborder | Orthoceratina |
| Family | Orthoceratidae |
| Subfamily | Orthoceratinae |
| Genus | Orthoceras |
| Species | arcuolyratum |
| bifoveatum | |
| bohemicum | |
| excentricum | |
| lepteanarum | |
| regulare | |
| revalense | |
| saksbyense | |
| scabridum | |
| turris |