Name(s) in cluster
| †Semionotus | urn:lsid:organismnames.com:name:661853 |
| †Semionotus Agassiz 1832 | urn:lsid:organismnames.com:name:514180 |
| †Semionotus Ag. | urn:lsid:organismnames.com:name:3753116 |
...
| †Semionotus | urn:lsid:organismnames.com:name:661853 |
| †Semionotus Agassiz 1832 | urn:lsid:organismnames.com:name:514180 |
| †Semionotus Ag. | urn:lsid:organismnames.com:name:3753116 |