Superphylum deuterostomes Grobben, 1908 - deuterostomes
see Infrakingdom Deuterostomia Grobben, 1908
Count: [p] 4p
Xenambulacraria Bourlat, Juliusdottir, Lowe, Freeman, Aronowicz, Kirschner, Lander, Thorndyke, Nakano, Kohn, Heyland, Moroz, Copley & Telford, 2006
Count: [p] 3p;1g;1s
1 Phylum Xenoturbellida Westblad, 1949
see Subphylum Xenoturbellida Westblad, 1949
Count: 1g;1s
2 Ambulacraria Metschnikoff 1881 [Halanych 1995]
Count: [p] 2p