[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 Raja Linnaeus, 1758 - skates
             01 Raja africana Capapé, 1977, nom. illeg. - African ray
             02 Raja asterias Delaroche, 1809 - starry skate
             03 Raja brachyura Lafont, 1871 - blonde ray
             04 Raja clavata Linnaeus, 1758 - thornback skate
             05 Raja maderensis Lowe, 1838 - Madeiran ray
             06 Raja microocellata Montagu, 1818 - owl ray
             07 Raja miraletus Linnaeus, 1758 - brown ray
             08 Raja montagui Fowler, 1910 - Homelyn ray
             09 Raja polystigma Regan, 1923 - speckled ray
             10 Raja radula Delaroche, 1809 - rough ray
             11 Raja rondeleti Bougis, 1959 - Rondelet's ray
             12 Raja undulata Lacépède, 1802 - painted ray