[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Count: 3k;35p;34c;158o;1359f;4704g;2825s;11ss
   Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988], nom. cl. inval. see Clade Tetrapoda Hatschek & Cori 1896 [Laurin 2020]
  Count: [*] 8o;28f;69g;133s
     Order Podicipediformes Fürbringer, 1888
    Count: [*] 1f;1g;4s
       Family Podicipedidae Bonaparte, 1832 - grebes
      Count: [*] 1g;4s
         Genus Podicipes Oken, 1839, nom. illeg. see Genus Podiceps Latham, 1787
        Count: [*] 4s
           Podicipes nigricollis Brehm, 1831 see Podiceps nigricollis Brehm, 1831
          Count: -