Phylum Marattiophyta Heintze 1927
Parent taxon: Pteridophytanae according to A. B. Doweld 2001
Sister taxa: Botryopteridiophyta, Cladoxylophyta, Equisetophyta, Ophioglossophyta, Sphenophyllophyta
Subtaxa: Marattiopsida
Parent taxon: Pteridophytanae according to A. B. Doweld 2001
Sister taxa: Botryopteridiophyta, Cladoxylophyta, Equisetophyta, Ophioglossophyta, Sphenophyllophyta
Subtaxa: Marattiopsida