PaleoDB taxon number: 82139
Synonym: Gymnospermae [replaced name] (taxon 54830)
Full reference: J. L. Reveal. 1996. New required suprageneric names in vascular plants. Phytologia 79:68-76
Parent taxon: Cycadophytanae according to A. B. Doweld 2001
Sister taxa: Aneurophytophyta, Cycadeoideophyta, Gnetophyta, Lyginopteridopsida, Magnoliophyta, Moresnetiophyta, Noeggerathiophyta, Peltaspermophyta
Subtaxa: Aethophyllum, Araucariales, Archaeosperma, Australoxylon, Carpodium, Condylites, Cordaitopsida, Cupressoconus, Entylissa, Harrisostrobus, Kryshtofovichiella, Masculostrobus, Niponophyllum, Palaeocyparis, Pinopsida, Podocarpopsida, Satyrites incertus, Sertostrobus, Sujfunophyllum, Tanaidia, Tanaidocarpidium, Taxineae, Taxopsida, Uesuguipollenites, Voltziopsida, Voltziostrobus