Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Phylum: Acoela
Familia: Actinoposthiidae
Genera: Actinoposthia - Archactinoposthia - Atriofronta - Childianea - Microposthia - Paractinoposthia - Paraproporus - Pelophila - Philactinoposthia - Pseudactinoposthia - Tetraposthia
Name
Actinoposthiidae Hooge, 2001