Genus
Orthocycloceras Barskov, 1972
List of species
1. Orthocycloceras ibex (Sowerby, 1839) | Silurian
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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 | Ctenoceras |
Orthoceras | |
Orthocycloceras | |
Species | fluminense |
ibex | |
Genus | Striatocycloceras |