Phylum Ascomycota Caval.-Sm. (1998) - sac fungi Subphylum Pezizomycotina O.E. Erikss. & Winka (1997) Class Sordariomycetes O.E. Erikss. & Winka (1997) Subclass Hypocreomycetidae O.E. Erikss. & Winka (1997) Order Coronophorales Nannf. (1932) Family Ceratostomataceae G.Winter (1885) Genus Pteridiosperma J.C. Krug & Jeng (1979)