liik
Discoceras costatum Rasmussen et Surlyk, 2012
Klassifikatsioon
| organismirühm | Biota |
| riik | Animalia |
| hõimkond | Mollusca |
| klass | Cephalopoda |
| alamklass | Tarphyceratia |
| selts | Tarphyceratida |
| sugukond | Discoceratidae |
| perekond | Discoceras |
| liik | amtjaernense |
| angulatum | |
| antiquissimum | |
| arctuatum | |
| bandonis | |
| boreale | |
| costatum | |
| depressum | |
| fleischeri | |
| gubkovense | |
| ievense | |
| nilssoni | |
| rarospira | |
| roemeri | |
| siljanense | |
| spongistriatum | |
| vasalemmense |