organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Kingdom Protoctista Hogg, 1860 Phylum Euglenophyta Pascher (1931) - euglenoids see Class Euglenophyceae W. Schoenichen (1925) Genus Euglena C.G. Ehrenberg, 1830 Euglena gracilis Klebs, 1883 Euglena spirogyra Ehrenberg