Name(s) in cluster
| †Hesperornis Marsh 1880 | urn:lsid:organismnames.com:name:628967 |
| †Hesperornis Marsh | urn:lsid:organismnames.com:name:1441671 |
| †Hesperornis Marsh 1872 | urn:lsid:organismnames.com:name:5186801 |
| †Hesperornis | urn:lsid:organismnames.com:name:383226 |
...