[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Pisces
     Class Chondrichthyes Huxley, 1880 - cartilaginous fishes
       Order Squaliformes Compagno, 1973 - dogfish sharks
         Family Centrophoridae Bleeker, 1859 - gulper sharks
           Genus Deania Jordan & Snyder, 1902 - longnose dogfish
             1 Deania calcea (Lowe, 1839) - birdbeak dogfish
             2 Deania hystricosa (Garman, 1906)
             3 Deania profundorum (Smith & Radcliffe, 1912) - arrowhead dogfish