Phylum Ascomycota Caval.-Sm. (1998) - sac fungi Subphylum Pezizomycotina O.E. Erikss. & Winka (1997) Class Eurotiomycetes O.E. Erikss. & Winka (1997) Order Mycocaliciales Tibell & Wedin (2000) Family Sphinctrinaceae M. Choisy (1950) see Family Mycocaliciaceae A.F.W.Schmidt (1970) Genus Pyrgidium Nyl. (1867)