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 Loculoplectascomycetidae see Subclass Dothideomycetidae P.M.Kirk et al., 2001, nom. inval.
                 Order Myriangiales Starbäck (1899)
                   Family Arthoniaceae Rchb. (1841)
                     Genus Cryptothecia Stirt. (1876), nom. cons.