organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Eukaryota Chatton, 1925 - eukaryotes
     Kingdom Protozoa Goldfuss, 1818 - protozoa
       Phylum Myxomycota Margulis, 1996 see Parvphylum Mycetozoa de Bary, 1859 ex Rostafiński, 1873
         Class Protosteliomycetes see Class Protostelea Alexopoulos & Mims, 1979
           Order Protosteliales L.S. Olive & Stoian. ex P.M.Kirk, P.F. Cannon & J.C. David (2001) see Order Protostelida Olive & Stoianovitch, 1966
             1 Family Cavosteliaceae L.S. Olive (1965) see Family Cavosteliidae Olive, 1965
             2 Family Ceratiomyxaceae Schröter (1889) see Family Ceratiomyxidae Schröter, 1889
             3 Family Echinosteliopsidaceae
             4 Family Protosteliaceae L.S. Olive (1962) see Family Protosteliidae Olive, 1962