[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Pisces
     Class Chondrichthyes Huxley, 1880 - cartilaginous fishes
       Order Rajiformes Berg, 1940 - skates
         Family Rajidae Blainville, 1816 - skates
           Genus Bathyraja Ishiyama, 1958
             Bathyraja spinicauda (Jensen, 1914) - spinytail skate