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: -