Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Eurotiomycetes O.E. Erikss. & Winka (1997)
       Order Mycocaliciales Tibell & Wedin (2000)
         Family Mycocaliciaceae A.F.W.Schmidt (1970)
           Genus Phaeocalicium A.F.W. Schmidt (1970)