[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Kingdom Plantae Haeckel (1866) - plants Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct. Class Liliopsida Batsch (1802) see Class Magnoliopsida Brongn. (1843) Order Potamogetonales Dumort. (1829) see Order Alismatales R.Br. ex Bercht. & J.Presl (1820) Family Posidoniaceae Vines (1895), nom. cons. Genus Posidonia K.D.Koenig (1805) Posidonia oceanica (L.) Delile