Domain Eucaryota Subdomain Chlorota Doweld (2001) Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981) Subkingdom Pteridobiotina Britton & A. Br. (1896) Superphylum Cycadophytanae Doweld (2001) Phylum Pinophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Class Pinopsida Burnett (1835) Class †Voltziopsida Doweld (2001) see Class Pinopsida Burnett (1835) Order †Voltziales Andreánszky (1954) Family †Voltziaceae Arnold (1947) 1 Genus †Voltzia Brongn. (1828)