Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Sordariomycetes O.E. Erikss. & Winka (1997)
       Subclass Hypocreomycetidae O.E. Erikss. & Winka (1997)
         Order Hypocreales Lindau (1897)
           01 Family Bionectriaceae Samuels & Rossman (1999)
           02 Family Ceratostomataceae G.Winter (1885)
           03 Family Clavicipitaceae Earle ex Rogerson (1970)
           04 Family Hypocreaceae De Not. (1844)
           05 Family Nectriaceae Tul. & C.Tul. (1865)
           06 Family Niessliaceae Kirschst. (1939)
           07 Genus Bulbithecium Udagawa & T. Muroi (1990)
           08 Genus Emericellopsis J.F.H. Beyma (1940)
           09 ?Genus Hapsidospora Malloch & Cain (1970)
           10 Genus Leucosphaerina Arx (1987)
           11 ?Genus Metadothella Henn. (1904)
           12 Genus Nigrosabulum Malloch & Cain (1970)
           13 Genus Payosphaeria W.F. Leong (1990)
           14 Genus Peethambara Subram. & Bhat (1978)
           15 Genus Peloronectria Möller (1901), nom. dub.
           16 Genus Pseudomeliola Speg. (1889)
           17 Genus Scopinella Lév. (1849)
           18 Genus Ticonectria Döbbeler (1998)
           19 Genus Tilakidium Vaidya, C.D. Naik & Rathod (1986)