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 Xylariales Nannf. (1932)
                 1 Family Coniochaetaceae Malloch & Cain (1971)
                 2 Family Phyllachoraceae Theiss. & H. Syd. (1915)
                 3 Family Xylariaceae Tul. & C.Tul. (1861)
                 4 Family Diatrypaceae Nitschke (1869)