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 Pyrenomycetes (Fr., 1821) Ainsworth (1966) see Class Ascomycetes G.Winter (1880)
               Order Laboulbeniales Lindau (1897)
                 Suborder Laboulbeniineae see Order Laboulbeniales Lindau (1897)
                   1 Family Euceratomycetaceae I.I. Tav. (1980)
                   2 Family Ceratomycetaceae S. Colla (1934)
                   3 Family Laboulbeniaceae G.Winter (1886)