Name(s) in cluster
| †Iapetognathus Landing in Fortey et al. 1981 | urn:lsid:organismnames.com:name:4902698 |
| †Iapetognathus | urn:lsid:organismnames.com:name:1326472 |
| †Iapetognathus Landing 1982 | urn:lsid:organismnames.com:name:1415464 |
...
| †Iapetognathus Landing in Fortey et al. 1981 | urn:lsid:organismnames.com:name:4902698 |
| †Iapetognathus | urn:lsid:organismnames.com:name:1326472 |
| †Iapetognathus Landing 1982 | urn:lsid:organismnames.com:name:1415464 |