Kingdom Fungi R.T.Moore (1980) - fungi
   Phylum Chytridiomycota Doweld (2001)
     Class Chytridiomycetes Moebius (1929)
       Order Rhizophydiales Letcher (2006)
         1 Genus Rhizophydium Schenk ex Rabenh. (1868)
         2 Genus Kappamyces Letcher & M.J. Powell (2005)
         3 Genus Terramyces Letcher (2006)
         4 Genus Boothiomyces Letcher (2006)
         5 Genus Batrachochytrium Longcore, Pessier & D.K. Nichols (1999)