Domain Eucaryota Subdomain Chlorota Doweld (2001) Kingdom Bacillariobiota Doweld (2001) Subkingdom Saprolegniobiotina Doweld (2001) 1 Phylum Developayellomycota Doweld (2001) [monotypic] 2 Phylum Saprolegniomycota Zerov ex Doweld (2001) 3 Phylum Hyphochytriomycota Margulis ex Doweld (2001) see Phylum Pseudofungi Caval.-Sm. (1986) 4 Phylum Opalinomycota Doweld (2001)