Species
Orthoceras arcuolyratum Schmidt, 1858
Synonyymit
1858 Orthoceras arcuolyratum — Schmidt , pp. 196
1926 Orthoceras arcuolyratum — Twenhofel , pp. 298
2006 Striatocycloceras foerstei — Kröger & Isakar , pp. 151, fig. 7Q, 10H
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Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Cephalopoda |
| Subclass | Orthoceratia |
| Order | Orthocerida |
| Suborder | Orthoceratina |
| Family | Orthoceratidae |
| Subfamily | Orthoceratinae |
| Genus | Orthoceras |
| Species | arcuolyratum |
| bifoveatum | |
| calamiteum | |
| compressum | |
| excentricum | |
| hoernesi | |
| luhai | |
| regulare | |
| revalense | |
| scabridum |