Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Dothideomycetes O.E. Erikss. & Winka (1997)
       Family Pyrenotrichaceae Zahlbr. (1926)
         1 ?Genus Cyanoporina Groenh. (1951)
         2 Genus Pyrenothrix Riddle (1917)