Name(s) in cluster
| †Plethometopus Ulrich 1930 | urn:lsid:organismnames.com:name:2851362 |
| †Plethometopus | urn:lsid:organismnames.com:name:2110435 |
| †Plethometopus Ulrich 1931 | urn:lsid:organismnames.com:name:2852219 |
| †Plethometopus Ulrich in Bridge 1939 | urn:lsid:organismnames.com:name:1044336 |
...