Name(s) in cluster
| †Hildoceras bifrons Brug. | urn:lsid:organismnames.com:name:2976561 |
| †Hildoceras bifrons (Bruguiere 1789) | urn:lsid:organismnames.com:name:5686487 |
| †Hildoceras bifrons | urn:lsid:organismnames.com:name:304416 |
...
| †Hildoceras bifrons Brug. | urn:lsid:organismnames.com:name:2976561 |
| †Hildoceras bifrons (Bruguiere 1789) | urn:lsid:organismnames.com:name:5686487 |
| †Hildoceras bifrons | urn:lsid:organismnames.com:name:304416 |