Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Sordariomycetes O.E. Erikss. & Winka (1997)
       Subclass Diaporthomycetidae Senan., Maharachch. & K.D.Hyde (2015)
         Family Thyridiaceae O.E. Erikss. & J.Z. Yue (1987), incertae sedis
           1 Genus Mattirolia Berl. & Bres. (1889)
           2 Genus Pleurocytospora Petr. (1923)
           3 Genus Thyridium Nitschke (1867)