Kingdom Fungi R.T.Moore (1980) - fungi Phylum Blastocladiomycota T.Y. James (2007) Class Blastocladiomycetes Doweld (2001) Order Callimastigales Doweld (2014) Family Callimastigaceae Fonseca (1915) [monotypic] 1 Genus Callimastix Weissenb. (1912) [monotypic]