Name(s) in cluster
| †Petalaxis Milne Edwards & Haime 1852 | urn:lsid:organismnames.com:name:1405328 |
| †Petalaxis | urn:lsid:organismnames.com:name:8913 |
| †Petalaxis Milne-Edwards & Haime 1852 | urn:lsid:organismnames.com:name:20131 |
...
| †Petalaxis Milne Edwards & Haime 1852 | urn:lsid:organismnames.com:name:1405328 |
| †Petalaxis | urn:lsid:organismnames.com:name:8913 |
| †Petalaxis Milne-Edwards & Haime 1852 | urn:lsid:organismnames.com:name:20131 |