[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Pisces
     Class Osteichthyes Huxley, 1880 - bony fishes see [unranked] Euteleostomi
       Order Perciformes Rafinesque, 1810 - perches
         Family Tetragonuridae - squaretails
           Genus Tetragonurus Risso, 1810
             1 Tetragonurus atlanticus Lowe, 1839 - bigeye squaretail
             2 Tetragonurus cuvieri Risso, 1810 - smalleye squaretail