Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Sordariomycetes O.E. Erikss. & Winka (1997)
       Subclass Xylariomycetidae O.E. Erikss. & Winka (1997)
         Order Xylariales Nannf. (1932)
           Family Clypeosphaeriaceae G.Winter (1886) see Family Xylariaceae Tul. & C.Tul. (1861)
             01 ?Genus Apioclypea K.D.Hyde (1994)
             02 ?Genus Apiorhynchostoma Petr. (1923)
             03 Genus Aquasphaeria K.D.Hyde (1995)
             04 Genus Brunneiapiospora K.D.Hyde, J. Fröhl. & Joanne E. Taylor (1998)
             05 Genus Ceratostomella Sacc. (1878)
             06 Genus Clypeosphaeria Fuckel (1870)
             07 Genus Crassoascus Checa, Barrasa & A.T. Martínez (1993)
             08 Genus Duradens Samuels & Rogerson (1990)
             09 Genus Palmomyces K.D.Hyde, J. Fröhl. & Joanne E. Taylor (1998), nom. illeg. see Genus Palmaria K.D.Hyde, J. Fröhl. & Joanne E. Taylor (2017), nom. illeg.
             10 Genus Pseudovalsaria Spooner (1986)