Superphylum Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
   [stem] Phylum †Vetulicolia Shu, Conway Morris, Han, Chen, Zhang, Zhang, Liu, Li & Liu, 2001
     ?Class †Yunnanozoa Dzik, 1995 [monotypic] - yunnanozoans
       Family †Yunnanozoidae Dzik, 1995
         Genus †Haikouella Chen et al., 1999 see Genus Yunnanozoon Hou, Ramsköld & Bergström, 1991