Genus
Harpoceras Waagen, 1869
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Cephalopoda |
| Subclass | Ammonoidea |
| Order | Ammonitida |
| Family | Hildoceratidae |
| Genus | Harpoceras |
| Hildoceras |
See also
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Cephalopoda |
| Subclass | Ammonoidea |
| Order | Ammonitida |
| Family | Hildoceratidae |
| Genus | Harpoceras |
| Hildoceras |