Class Anthozoa Ehrenberg, 1831
   Subclass Octocorallia Haeckel, 1866 - octocorals see Subclass Alcyonaria
     Order Alcyonacea Lamouroux, 1816 - soft corals
       01 Family Pseudogorgiidae
       02 Family Subergorgiidae
       03 Family Taiaroidae
       04 Family Tubiporidae
       05 Family Xeniidae
       06 Family Acanthogorgiidae
       07 Family Alcyoniidae
       08 Family Anthothelidae
       09 Family Briareidae
       10 Family Chrysogorgiidae Verrill, 1883
       11 Family Clavulariidae
       12 Family Coelogorgiidae
       13 Family Coralliidae
       14 Family Cornulariidae
       15 Family Dendrobrachiidae
       16 Family Ellisellidae
       17 Family Gorgoniidae Lamouroux, 1812
       18 Family Ifalukellidae
       19 Family Isididae Lamouroux, 1812
       20 Family Keroeididae
       21 Family Melithaeidae
       22 Family Nephtheidae Gray, 1862
       23 Family Nidaliidae
       24 Family Paragorgiidae
       25 Family Paralcyoniidae
       26 Family Parisididae Aurivillius, 1931
       27 Family Plexauridae
       28 Family Primnoidae