[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 Procellariiformes Fürbringer, 1888
       Family Gaviidae Allen, 1897 - divers
         1 Genus Gavia Forster, 1788