After Conway Morris, 1993

Alternative phylogeny after Davidson, Peterson & Cameron, 1995

Alternative phylogeny after Shu, Conway Morris, Han, Zhang & Liu, 2004

<==o Deuterostoma (deuterostomes; jälkisuiset)
   |?- †Vetulicolia Shu, Conway Morris, Han, Chen, Zhang, Zhang, Liu, Li & Liu, 2001
   |--+-- Hemichordata Bateson, 1885 [Stomochorda Dawydoff, 1948 in partim] (acorn worms; esiselkäjänteiset) [paraphyletic?]
   |  `-- Chordata (selkäjänteiset)
   `--+--+-- †Dinomischida
      |  `--+-- †Eldoniida
      |     `--+-- †Rotadiscida
      |        `-- †Paropsonemida
      `--+-- †Cambroclaves
         `--+-- †Heterostelea
            |?-o †Vetulocystida Shu, Conway Morris, Han, Zhang & Liu, 2004
            |  `--o †Vetulocystidae Shu, Conway Morris, Han, Zhang & Liu, 2004
            |     |-- †Vetulocystis catenata Shu, Conway Morris, Han, Zhang & Liu, 2004
            |     `-- †Dianchicystis jianshanensis Shu, Conway Morris, Han, Zhang & Liu, 2004
            `--+?- †Homalozoa [Mitrata; Calcichordata; Stylophora; Caroidea] (mitrates and related bizarre deuterostomes) [possibly primitive echinoderms]
               `-- Echinodermata (Spiny-skinned animals; piikkinahkaiset)

Deuterostomes(?) not treated by Conway Morris (1993):

    Xenoturbellida
        Xenoturbella Westblad, 1949
            X. bocki Westblad, 1949
            X. westbladi

Reference(s):