Domain Eucaryota Subdomain Chlorota Doweld (2001) Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981) Subkingdom Bryobiotina Campb. (1890) Phylum †Langiophytophyta Doweld (2001) [monotypic] Class †Langiophytopsida Doweld (2001) Order †Lyonophytales Doweld (2001) [monotypic] 1 Family †Lyonophytaceae Doweld (2001) [monotypic]