Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Eurotiomycetes O.E. Erikss. & Winka (1997)
       Subclass Eurotiomycetidae Tehler ex Geiser & Lutzoni (2007), nom. inval.
         1 Order Arachnomycetales Gibas, Sigler & Currah (2002) [monotypic]
         2 Order Eurotiales G.W. Martin ex Benny & Kimbr. (1980)
         3 Order Onygenales Cif. ex Benny & Kimbr. (1980)
         4 Genus Azureothecium Matsush. (1989), incertae sedis
         5 Genus Calyptrozyma Boekhout & Spaay (1995), incertae sedis
         6 Genus Pisomyxa Corda (1837), incertae sedis
         7 Genus Samarospora Rostr. (1892), incertae sedis
         8 Genus Veronaia Benedek (1961), incertae sedis