Pan-Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
     Eukarya R. Creti, F. Citarella, O. Tiboni, A. Sanangelantoni, P. Palm & P. Cammarano 1991 [Simpson 2020] see Domain Eukarya Chatton, 1925
       Archaeplastida Adl et al. 2005 [Simpson 2020]
         Rhodoplantae Saunders & Hommersand 2004 [Saunders 2020]
           Rhodophyta Wettstein 1901 [Saunders 2020]
             Eurhodophytina Saunders & Hommersand 2004 [Saunders 2020]
               Florideophyceae Cronquist 1960 [Saunders 2020]
                 1 Hildenbrandiales Pueschel & Cole 1982 [Saunders 2020]
                 2 Nemaliophycidae Christensen 1978 [Saunders 2020]
                 3 Corallinophycidae Le Gall & Saunders 2007 [Saunders 2020]
                 4 Ahnfeltiophycidae Saunders & Hommersand 2004 [Saunders 2020]
                 5 Rhodymeniophycidae Saunders & Hommersand 2004 [Saunders 2020]