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)
           01 Family Amphisphaeriaceae G.Winter (1885)
           02 Family Clypeosphaeriaceae G.Winter (1886) see Family Xylariaceae Tul. & C.Tul. (1861)
           03 Family Diatrypaceae Nitschke (1869)
           04 Family Graphostromataceae M.E.Barr, J.D. Rogers & Y.M. Ju (1993)
           05 Family Hyponectriaceae Petr. (1923)
           06 Family Xylariaceae Tul. & C.Tul. (1861)
           07 Genus Adomia S. Schatz (1985)
           08 Genus Diamantinia A.N. Mill., Læssøe & Huhndorf (2003)
           09 Genus Lasiobertia Sivan. (1978)
           10 Genus Palmicola K.D.Hyde (1993)
           11 Genus Pulmosphaeria Joanne E. Taylor, K.D.Hyde & E.B.G.Jones (1996)
           12 Genus Yuea O.E. Erikss. (2003)