Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Clade Archaeplastida Adl et al. 2005 [Simpson 2020] Clade Rhodoplantae Saunders & Hommersand 2004 [Saunders 2020] Clade Rhodophyta Wettstein 1901 [Saunders 2020] Clade Eurhodophytina Saunders & Hommersand 2004 [Saunders 2020] Clade Florideophyceae Cronquist 1960 [Saunders 2020] 1 Clade Hildenbrandiales Pueschel & Cole 1982 [Saunders 2020] 2 Clade Nemaliophycidae Christensen 1978 [Saunders 2020] 3 Clade Corallinophycidae Le Gall & Saunders 2007 [Saunders 2020] 4 Clade Ahnfeltiophycidae Saunders & Hommersand 2004 [Saunders 2020] 5 Clade Rhodymeniophycidae Saunders & Hommersand 2004 [Saunders 2020]