fossil marine animal genera Linnaeus, 1758 - animals
Count: [o†o] 22p;50c;198o;128g; †4p;59c;298o;1f;2584g
   Phylum Cnidaria Hatschek, 1888 - cnidarians
  Count: [o†o] 3c;19o; †6c;12o
     Class Hydrozoa Owen, 1843
    Count: [o†o] 6o; †2o
       1 Order Trachylinida see Order Trachylina Haeckel, 1879
      Count: -
       2 Order Hydroida Johnston, 1836 - hydroids see Order Anthoathecatae
      Count: -
       3 Order Siphonophorida Eschscholtz, 1829 see Order Siphonophora Eschscholtz, 1829
      Count: -
       4 Order Milleporina - millepore hydrocorals see Suborder Capitata Kühn, 1913 () sensu stricto
      Count: -
       5 Order Stylasterina - stylasterine hydrocorals see Suborder Filifera Kühn, 1913
      Count: -
       6 Order Lemniscaterina Gallitelli, 1979
      Count: -
       7 Order †Sphaeractinida
      Count: -
       8 Order †uncertain
      Count: -