Phylum Lobopodia Snodgrass, 1938 - lobopodians
   Subphylum Onychophora Grube, 1853 see Phylum Onychophora Grube, 1853
     Class Udeonychophora Poinar, 2000 [monotypic]
       Order †Ontonychophora Poinar, 2000
         Superfamily †Helenodoroidea Poinar, 2000 [monotypic]
           Family †Helenodoridae Poinar, 2000 [monotypic]
             1 Genus †Helenodora Thompson & Jones, 1980