[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
         1 Family Dalatiidae Gray, 1851 - kitefin sharks
         2 Family Centrophoridae Bleeker, 1859 - gulper sharks
         3 Family Squalidae Blainville, 1816 - dogfish sharks
         4 Family Echinorhinidae Gill, 1862 - bramble sharks