Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Carnivora Bowdich, 1821 - carnivores
       Suborder Caniformia Kretzoi, 1943
         Family Phocidae Gray, 1821 - true seals
           Genus Lobodon Gray, 1844 [monotypic] - crabeater seal
             Lobodon carcinophaga (Hombron & Jacquinot, 1842) - crabeater seal