Species
Orthocycloceras ibex (Sowerby, 1839)
Synonyymit
Lituites ibex —
Orthoceras ibex (J. de C. Sowerby) —
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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 | Orthocycloceras |
| Species | fluminense |
| ibex |