protostomes see [unranked] Protostomia Grobben, 1908 Spiralia Schleip, 1929 - spiralians see Superphylum Spiralia Schleip, 1929 Gnathifera Ahlrichs, 1995 [Phylum] Rotifera Cuvier, 1798 - rotifers see Phylum Syndermata Ahlrichs, 1995