Genus
Polygrammoceras Foerste, 1928
List of species
Luokittelu
Organism group | Biota |
Kingdom | Animalia |
Phylum | Mollusca |
Class | Cephalopoda |
Subclass | Orthoceratia |
Order | Orthocerida |
Family | Kionoceratidae |
Genus | Kionoceras |
Polygrammoceras | |
Species | bullatum |
Genus | Ringoceras |