Class Equisetopsida C. Agardh (1825) - horsetails angiosperms - flowering plants see Subclass Magnoliidae Novák ex Takht. (1967) Subclass Magnoliidae Novák ex Takht. (1967) - angiosperms Superorder Austrobaileyanae Doweld ex M.W. Chase & Reveal (2009) Order Austrobaileyales Takht. ex Reveal (1992)