Ecdysozoa Aguinaldo, Turbeville, Linford, Rivera, Garey, Raff & Lake 1997, nom. cl. inval. - ecdysozoans see Clade Ecdysozoa Aguinaldo, Turbeville, Linford, Rivera, Garey, Raff & Lake 1997 [Lake, Halanych, Servin & Garey 2020]
   Phylum †Lobopodia Snodgrass, 1938 - lobopodians
     Class †Xenusia Dzik & Krumbiegel, 1989 - xenusians
       [Order] †Xenusiida Dzik & Krumbiegel, 1989
         1 Genus †Xenusion Pompeckj, 1927
         1.n.1.1.1 Genus †Paucipodia Chen, Zhou & Ramsköld, 1995
         1.n.1.1.2 Genus †Orstenotubulus Maas, Mayer, Kristensen & Waloszek, 2007
         1.n.1.2.1.1 Genus †Microdictyon Bengtson, Matthews & Missarzhevsky, 1981
         1.n.1.2.1.2.1 Genus †Cardiodictyon Hou, Ramsköld & Bergström, 1991
         1.n.1.2.1.2.2 Genus †Hallucigenia Conway Morris, 1977
         1.n.1.2.2.1 Genus †Onychodictyon Hou, Ramsköld & Bergström, 1991
         1.n.1.2.2.2.1 Genus †Diania Liu, Steiner, Dunlop, Keupp, Shu, Ou, Han, Zhang & Zhang, 2011
         1.n.1.2.2.2.2.1 Genus †Luolishania Hou & Chen, 1989
         1.n.1.2.2.2.2.1.n †"Collins' monster"
         1.n.1.2.2.2.2.2.1 Genus †Facivermis Hou & Chen, 1989
         1.n.2.1 Genus †Hadranax Budd & Peel, 1998