Order Charadriiformes Huxley, 1867 - shorebirds, gulls, auks
Count: [†g] 12f;21g; †1f;27g
   Suborder Alcae Sharpe - auks see Superfamily Laroidea Vigors, 1825
  Count: [†g] 1f;4g; †6g
     Family Alcidae Vigors, 1825 - auks
    Count: -
       Subfamily †Mancallinae (L. Miller) P. Brodkorb, 1967
      Count: [†g] †2g
         1 Genus †Praemancalla Howard, 1966, nom. dub.
        Count: -
         2 Genus †Mancalla Lucas, 1901
        Count: -