[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Kingdom Algae L. (1753) see [unranked] Algae Phylum Rhodophycota Class Rhodophyceae Thuret (1855) - red algae see Phylum Rhodophyta Wettst. (1901) Order Ahnfeltiales Maggs & Pueschel (1989) Family Ahnfeltiaceae Maggs & Pueschel Genus Ahnfeltia E.M. Fr. (1835) 1 Ahnfeltia plicata (Huds.) Fr. (1836)