Kingdom Fungi R.T.Moore (1980) - fungi
   Phylum Mucoromycota Doweld (2001)
     Subphylum Mucoromycotina Benny (2007)
       Class Mucoromycetes Doweld (2001) [monotypic]
         Order Mucorales Nees (1817)
           Family Phycomycetaceae Arx (1982)
             1 Genus Phycomyces Kunze (1823), nom. sanct.
             2 Genus Spinellus Tiegh. (1875)