Kingdom Fungi R.T.Moore (1980) - fungi Phylum Chytridiomycota Doweld (2001) Class Mesochytriomycetes Tedersoo, Sánchez-Ramírez, Kõljalg, Bahram, M. Döring, Schigel, T.W. May, M. Ryberg & Abarenkov (2018) Order Mesochytriales Doweld (2013) [monotypic] Family Mesochytriaceae Doweld (2013) [monotypic] 1 Genus Mesochytrium B.V. Gromov, Mamkaeva & Pljusch (2000) [monotypic]