living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Plantae Haeckel (1866) - plants
       Subkingdom Thallobionta
         Division Eumycota see Kingdom Eumycota
           Subdivision Ascomycotina Ainsw. (1966) see Phylum Ascomycota Caval.-Sm. (1998)
             Class Loculoascomycetes Ainsw. (1966) see Class Ascomycetes G.Winter (1880)
               Subclass Loculoedaphomycetidae see Subclass Dothideomycetidae P.M.Kirk et al., 2001, nom. inval.
                 Order Hysteriales Lindau (1896)
                   1 Family Parmulariaceae E. Müll. & Arx ex M.E.Barr (1979)
                   2 Family Patellariaceae Corda (1838)
                   3 Family Phillipsiellaceae see Family Saccardiaceae Höhn. (1909)
                   4 Family Roccellaceae Chevall. (1826)
                   5 Family Opegraphaceae Stizenb. (1862)
                   6 Family Hysteriaceae Chevall. (1826)