Domain Eucaryota Subdomain Chlorota Doweld (2001) Kingdom Peridiniobiota Starobogatov ex Doweld (2001) Subkingdom Peridiniobiotina Doweld (2001) Phylum Haplosporidiozoa Corliss, 1984 [monotypic] 1 Class Haplosporidiatea Caullery, 1953