Kingdom Fungi R.T.Moore (1980) - fungi
   Phylum Chytridiomycota Doweld (2001)
     Class Chytridiomycetes Moebius (1929)
       Order Spizellomycetales D.J.S. Barr (1980)
         Genus Powellomyces Longcore, D.J.S. Barr & Désauln. (1995)