Name(s) in cluster
| †Blackwelderia Walcott 1905 | urn:lsid:organismnames.com:name:2484889 |
| †Blackwelderia | urn:lsid:organismnames.com:name:2172173 |
| †Blackwelderia Walcott 1906 | urn:lsid:organismnames.com:name:680132 |
...
| †Blackwelderia Walcott 1905 | urn:lsid:organismnames.com:name:2484889 |
| †Blackwelderia | urn:lsid:organismnames.com:name:2172173 |
| †Blackwelderia Walcott 1906 | urn:lsid:organismnames.com:name:680132 |