organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Eukaryota Chatton, 1925 - eukaryotes
     Kingdom Fungi R.T.Moore (1980) - fungi
       Phylum Chytridiomycota Arx (1967), nom. inval. see Phylum Chytridiomycota Doweld (2001)
         Class Chytridiomycetes Moebius (1929)
           Order Blastocladiales H.E. Petersen (1909)
             1 Family Blastocladiaceae H.E. Petersen (1909)
             2 Family Catenariaceae Couch (1945), nom. cons. prop.
             3 Family Coelomomycetaceae Couch (1945)
             4 Family Physodermataceae Sparrow (1952)
             5 Family Sorochytriaceae Dewel (1985) [monotypic]
             6 Genus Coelomycidium Debais. (1919), incertae sedis
             7 Genus Endoblastidium Codreanu (1931), incertae sedis