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 Sphinctrinaceae M. Choisy (1950) see Family Mycocaliciaceae A.F.W.Schmidt (1970)
           1 Genus Pyrgidium Nyl. (1867)
           2 Genus Sphinctrina Fr. (1825), nom. sanct.