Pan-Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   [crown] Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
     [crown] Eukarya R. Creti, F. Citarella, O. Tiboni, A. Sanangelantoni, P. Palm & P. Cammarano 1991 [Simpson 2020] see Domain Eukarya Chatton, 1925
       [crown] Archaeplastida Adl et al. 2005 [Simpson 2020]
         [crown] Rhodoplantae Saunders & Hommersand 2004 [Saunders 2020]
           [crown] Rhodophyta Wettstein 1901 [Saunders 2020]
             1 [crown] Proteorhodophytina Muñoz-Gómez, Mejía-Franco, Durnin, Colp, Grisdale, Archibald & Slamovits 2017 [Saunders 2020]
             2 [crown] Eurhodophytina Saunders & Hommersand 2004 [Saunders 2020]