[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
     Order Carnivora Bowdich, 1821 - carnivores
       Family Odobenidae Allen, 1880
         Genus Odobenus Brisson, 1762 - walrus
           Odobenus rosmarus (Linnaeus, 1758) - walrus