Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981) Subkingdom Pteridobiotina Britton & A. Br. (1896) Superdivision Cycadophytanae Doweld (2001) see Superphylum Cycadophytanae Doweld (2001) Division †Pteridospermatophyta Meyen Class †Peltaspermopsida Doweld (2001) Order †Trichopytiales A.V.Novikov & B. Barabasz-Krasny (2015), orth. inval. see Order Trichopityales Doweld (2001) Family †Psygmophyllaceae Zalessky (1937) Genus †Psygmophyllum Schimp. (1870)