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)
Order Annulatascales M.J. D'souza, Maharachch. & K.D.Hyde (2015) [monotypic]
Family Annulatascaceae S.W. Wong, K.D.Hyde & E.B.G.Jones (1998)
01 Genus Annulatascus K.D.Hyde (1992)
02 Genus Annulusmagnus J. Campb. & Shearer (2004)
03 Genus Aqualignicola Ranghoo, K.M. Tsui & K.D.Hyde (2001)
04 Genus Ascitendus J. Campb. & Shearer (2004)
05 Genus Ayria Fryar & K.D.Hyde (2004)
06 Genus Chaetorostrum Zelski, Raja, A.N. Mill. & Shearer (2011)
07 Genus Longicollum Zelski, F.R. Barbosa, Raja, A.N. Mill. & Shearer (2011)
08 Genus Rhamphoria Niessl (1876)
09 Genus Submersisphaeria K.D.Hyde (1996)
10 Genus Torrentispora K.D.Hyde, W.H. Ho, E.B.G.Jones, K.M. Tsui & S.W. Wong (2000)
11 Genus Vertexicola K.D.Hyde, Ranghoo & S.W. Wong (2000)