Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Dothideomycetes O.E. Erikss. & Winka (1997)
       Subclass Pleosporomycetidae C.L. Schoch, Spatafora, Crous & Shoemaker (2007)
         Order Mytilinidiales E.W.A. Boehm, C.L. Schoch & Spatafora (2009)
           Family Mytilinidiaceae Kirschst. (1924)
             01 Genus Actidium Fr. (1815), nom. sanct.
             02 Genus Halokirschsteiniothelia Boonmee & K.D.Hyde (2012)
             03 Genus Lophium Fr. (1818), nom. sanct.
             04 Genus Mytilinidion Duby (1861)
             05 Genus Ostreola Darker (1963)
             06 Genus Peyronelia Cif. & Gonz. Frag. (1927)
             07 Genus Quasiconcha M.E.Barr & M. Blackw. (1981)
             08 Genus Septonema Corda (1837)
             09 Genus Taeniolella S.Hughes (1958)
             10 Genus Zoggium Lar.N. Vassiljeva (2001)