Phylum Ascomycota Caval.-Sm. (1998) - sac fungi Subphylum Pezizomycotina O.E. Erikss. & Winka (1997) Class Sordariomycetes O.E. Erikss. & Winka (1997) Family Thyridiaceae O.E. Erikss. & J.Z. Yue (1987) Genus Thyridium Nitschke (1867)