[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 Phocidae Gray, 1821 - true seals
         Genus Phoca Linnaeus, 1758 - harbor, ringed, harp, and ribbon seals
           1 Phoca groenlandica Erxleben, 1777 - harp seal see Pagophilus groenlandicus (Erxleben, 1777)
           2 Phoca hispida Schreber, 1775 - ringed seal see Pusa hispida (Schreber, 1775)
           3 Phoca vitulina Linnaeus, 1758 - harbor seal