[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988], nom. cl. inval. see Clade Tetrapoda Hatschek & Cori 1896 [Laurin 2020]
     Order Charadriformes see Order Charadriiformes Huxley, 1867
       Family Alcidae Vigors, 1825 - auks
         Genus Alca Linnaeus, 1758
           1 Alca torda Linnaeus, 1758 - razorbill