Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Lichinomycetes Reeb, Lutzoni & Cl.Roux (2004)
       Order Lichinales Henssen & Büdel (1986)
         1 Family Gloeoheppiaceae Henssen (1995)
         2 Family Heppiaceae Zahlbr. (1906) see Family Lichinaceae Nyl. (1854)
         3 Family Lichinaceae Nyl. (1854)
         4 Family Peltulaceae Büdel (1986)