Phylum Ascomycota Caval.-Sm. (1998) - sac fungi Subphylum Pezizomycotina O.E. Erikss. & Winka (1997) Class Dothideomycetes O.E. Erikss. & Winka (1997) Subclass Pleosporomycetidae C.L. Schoch, Spatafora, Crous & Shoemaker (2007) Order Pleosporales Luttr. ex M.E.Barr (1987) Family Tetraplosphaeriaceae Kaz.Tanaka & K. Hiray. (2009) Genus Quadricrura Kaz.Tanaka, K. Hiray. & Sat. Hatak. (2009)