[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Eukaryota Chatton, 1925 - eukaryotes see Domain Eukaryota Chatton, 1925
     Supergroup Opisthokonta Cavalier-Smith, 1987 - opisthokonts see Clade Opisthokonta Cavalier-Smith 1987, nom. cl. inval.
       Fungi L. (1753) see Kingdom Fungi R.T.Moore (1980)
         Chytridiomycetes Moebius (1929)
           Neocallimastigaceae I.B. Heath (1983)
             1 Genus Anaeromyces Breton, Bernalier, Dusser, Fonty, B. Gaillard & J. Guillot (1990)
             2 Genus Caecomyces J.J. Gold (1988)
             3 Genus Cyllamyces Ozkose, B.J. Thomas, D.R. Davies, G.W. Griff. & Theodorou (2001)
             4 Genus Neocallimastix Vávra & Joyon ex I.B. Heath (1983)
             5 Genus Orpinomyces D.J.S. Barr, H. Kudo, Jakober & K.J. Cheng (1989)
             6 Genus Piromyces J.J. Gold, I.B. Heath & Bauchop (1988)