deuterostomes see Superphylum Deuterostomia Grobben, 1908
   Phylum †Vetulicolia Shu, Conway Morris, Han, Chen, Zhang, Zhang, Liu, Li & Liu, 2001
     ?Class †Yunnanozoa Dzik, 1995 - yunnanozoans
       Family †Yunnanozoonidae Dzik, 1995 see Family Yunnanozoidae Dzik, 1995
         Genus †Haikouella Chen et al., 1999 see Genus Yunnanozoon Hou, Ramsköld & Bergström, 1991
           1 †Haikouella lanceolata Chen et al., 1999 see Yunnanozoon lividum Hou, Ramsköld & Bergström, 1991
           2 †Haikouella jianshanensis Shu et al., 2003 see Yunnanozoon lividum Hou, Ramsköld & Bergström, 1991