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 Tirisporellales Suetrong, E.B.G.Jones & K.L. Pang (2015) [monotypic]
           Family Tirisporellaceae Suetrong, E.B.G.Jones & K.L. Pang (2015)
             1 Genus Bacusphaeria Norlail., Alias & Suetrong (2017)
             2 Genus Tirisporella E.B.G.Jones, K.D.Hyde & Alias (1996)
             3 Genus Thailandiomyces Pinruan, Sakay., K.D.Hyde & E.B.G.Jones (2008)
             4 Genus Phruensis Pinruan (2004)