[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Pisces
     Class Chondrichthyes Huxley, 1880 - cartilaginous fishes
       Order Carcharhiniformes Compagno, 1973 - ground sharks
         Family Hemigaleidae Hasse, 1879 - weasel sharks
           1 Genus Paragaleus Budker, 1935