| |
| Kingdom Animalia |
| |
Agnathiellidae Sterrer, 1972 – valid
|
| |
Austrognathiidae Sterrer, 1972 – valid
|
| |
Bursovaginoidea Sterrer, 1972 – valid
|
| |
Conophoralia Sterrer, 1972 – valid
|
| |
Filospermoidea Sterrer, 1972 – valid
|
| |
Gnathostomariidae Sterrer, 1972 – valid
|
| |
Gnathostomulida Sterrer, 1972 – valid – gnatostomulídeo, gnathostomulids
|
| |
Gnathostomulidae Sterrer, 1972 – valid
|
| |
Haplognathiidae Sterrer, 1972 – valid
|
| |
Mesognathariidae Sterrer, 1972 – valid
|
| |
Nanognathia Sterrer, 1972 – valid
|
| |
Nanognathia exigua Sterrer, 1972 – valid
|
| |
Onychognathiidae Sterrer, 1972 – valid
|
| |
Pterognathiidae Sterrer, 1972 – valid
|
| |
Scleroperalia Sterrer, 1972 – valid |
| |
|
