Species
Orthocycloceras? fluminense (Meneghini, 1857)
Classification
| Organism group | Biota |
| Domain | Eukaryota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Cephalopoda |
| Subclass | Orthoceratoidea |
| Order | Orthocerida |
| Suborder | Orthoceratina |
| Family | Orthoceratidae |
| Subfamily | Orthoceratinae |
| Genus | Orthocycloceras |
| Species | ibex |
| Orthocycloceras? fluminense |