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 Proteorhodophytina Muñoz-Gómez, Mejía-Franco, Durnin, Colp, Grisdale, Archibald & Slamovits 2017 [Saunders 2020]
                   1 Clade Compsopogonophyceae Saunders & Hommersand 2004 [Saunders 2020]
                   2 Clade Porphyridiophyceae Yoon, Müller, Sheath, Ott & Bhattacharya 2006 [Saunders 2020]
                   3 Clade Rhodellophyceae Cavalier-Smith 1998 [Saunders 2020]
                   4 Clade Stylonematales Drew 1956 [Saunders 2020]