organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Kingdom Protoctista Hogg, 1860 Phylum Actinopoda Calkins, 1902 Genus Acanthocystis Carter, 1863 Acanthocystis aculeata Hertwig & Lesser