[plants] Haeckel (1866) - plants vascular plants see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998) euphyllophytes see Clade Euphyllophyta Lecointre & Le Guyader 2006 [Cantino & Donoghue 2020] "Moniliformopses" Kenrick & P.R.Crane (1997), nom. inval. - ferns see Infraphylum Moniliformopses Kenrick & P.R.Crane (1997), nom. inval. Class Equisetopsida C.Agardh (1825) - horsetails see Subclass Equisetidae Warm. (1883) Order †Calamitales Eichwald (1852) see Order Equisetales DC. ex Bercht. & J.Presl (1829) Family †Calamitaceae Unger (1840) see Family Calamostachyaceae S.V.Meyen (1978), nom. cons. prop.