Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Cnidaria Hatschek, 1888 - cnidarians
     Class Anthozoa Ehrenberg, 1831
       Subclass Octocorallia Haeckel, 1866 - octocorals see Subclass Alcyonaria
         Order Pennatulacea - sea pens and sea pansies
           Genus Anthoptilum Kölliker, 1880
           Genus Balticina Gray, 1870
           Genus Cavernularia Valenciennes, 1850
           Genus Funiculina Lamarck, 1816
           Genus Pennatula Linnaeus, 1758
           Genus Ptilosarcus Verrill, 1866
           Genus Renilla Lamarck, 1816
           Genus Stylatula Verrill, 1864
           Genus Umbellula Cuvier, 1800, nom. nud.
           Genus Virgularia Lamarck, 1816