organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Kingdom Protoctista Hogg, 1860 Phylum Gamophyta Class Euconjugatae see Suborder Zygnematineae Order Mesotaenioideae see Family Mesotaeniaceae 1 Genus Cylindrocystis Meneghini ex de Bary (1858) 2 Genus Mesotaenium Nägeli (1849) 3 Genus Netrium (Nägeli) Itzigs. & Rothe (1856)