Domain Eucaryota
   Subdomain Chlorota Doweld (2001)
     Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981)
       Subkingdom Lycopodiobiotina Doweld (2001)
         Phylum †Zosterophyllophyta H.C.Bold (1973) see Subphylum Zosterophyllophytina H.P.Banks (1968)
           Class †Zosterophyllopsida Foster & Gifford (1974)
             Order †Zosterophyllales Bierhorst (1971)
               1 Family †Renaliaceae Doweld (2001) [monotypic]
               2 Family †Zosterophyllaceae Kräusel (1938)
               3 Family †Hsueaceae Kenrick & Crane (1997)
               4 Family †Sawdoniaceae Kenrick & Crane (1997)
               5 Family †Gosslingiaceae H. Banks (1968)