Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Clade neomura Cavalier-Smith, 1987 Domain Eukaryota Chatton, 1925 - eukaryotes Genus Helichosphaera Helichosphaera carteri (Wall.) Kamptner (1954) Helichosphaera carteri var. carteriᵀ (Wall.) Kamptner (1954) Helichosphaera carteri var. hyalina (Gaarder) Jordan & Young (1990) Helichosphaera carteri var. wallichii (Lohmann) Theodoridis (1984)