Kingdom Fungi R.T.Moore (1980) - fungi
   Phylum Chytridiomycota Doweld (2001)
     Class Spizellomycetes Tedersoo, Sánchez-Ramírez, Kõljalg, Bahram, M. Döring, Schigel, T.W. May, M. Ryberg & Abarenkov (2018) [monotypic]
       Order Spizellomycetales D.J.S. Barr (1980)
         Family Spizellomycetaceae D.J.S. Barr (1980)
           1 Genus Barromyces M.J. Powell & Letcher (2018) [monotypic]
           2 Genus Brevicalcar Letcher & M.J. Powell (2018) [monotypic]
           3 Genus Bulbosomyces Letcher & Longcore (2018) [monotypic]
           4 Genus Gaertneriomyces D.J.S. Barr (1980)
           5 Genus Gallinipes Letcher & M.J. Powell (2018)
           6 Genus Kochiomyces D.J.S. Barr (1980) [monotypic]
           7 Genus Spizellomyces D.J.S. Barr (1980)
           8 Genus Triparticalcar D.J.S. Barr (1980) [monotypic]