Taxonavigation
†Orthoceras currens.
Superregnum: Eukaryota
Regnum: Animalia
Phylum: Mollusca
Classis: Cephalopoda
Subclassis: Nautiloidea
Ordo: †Orthocerida
Familiae: Brachycycloceratidae - Clinoceratidae - Dawsonoceratidae - Geisonoceratidae - Lamellorthoceratidae - Offleyoceratidae - Paraphragmitidae - Sactorthoceratidae - Sphooceratidae - Troedssonellidae
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