Phylum Gnathostomulida Ax, 1956 - gnathostomulids Order Bursovaginoidea Sterrer, 1972 Suborder Conophoralia Sterrer, 1972 Family Austrognathiidae Sterrer, 1972 Genus Austrognatharia Sterrer, 1971 Genus Austrognathia Sterrer, 1965