Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Pezizomycetes O.E. Erikss. & Winka (1997) [monotypic]
       Order Pezizales J.Schröt. (1894)
         Family Caloscyphaceae Harmaja (2002)
           Genus Kallistoskypha Pfister, Agnello, Lantieri & LoBuglio (2013)