[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Pisces
     Class Chondrichthyes Huxley, 1880 - cartilaginous fishes
       Order Chimaeriformes Obruchev, 1953 - chimaeras
         Family Chimaeridae Rafinesque, 1815 - shortnose chimaeras
           Genus Hydrolagus Gill, 1863
             1 Hydrolagus affinis (Brito Capello, 1868) - Atlantic chimaera
             2 Hydrolagus mirabilis (Collett, 1904) - large-eyed rabbitfish
             3 Hydrolagus pallidus Hardy & Stehmann, 1990