[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Animalia Linnaeus, 1758 - animals
     Branch Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
       Division Bilateria Hatschek, 1888 see Subkingdom Bilateria Hatschek, 1888
         Subdivision Protostomia Grobben, 1908 see Infrakingdom Protostomia Grobben, 1908
           Section Pseudocoelomata
             Phylum Nematoda Gegenbaur, 1859 - round worms
               Class Adenophorea
                 Order Chromadorida Chitwood, 1933
                   Suborder Monhysterina De Coninck & Schuurmans Stekhoven, 1933
                     Genus Cylindrolaimus De Man, 1880
                     Genus Monhystera Bastian, 1865
                     Genus Plectus Bastian, 1865