Typically referred to as Soft Corals. This order of corals does not produce a calcium carbonate skeleton, instead they contain small skeletal elements called sclerites. These sclerites give the coral some degree of support and makes the flesh less attractive for predators. The shape and size of the sclerites provides a key method of species identification.
- Taxonomy in Aquarium Corals: Part 3 - Everything Else - Soft Corals, Zoanthids, and Corallimorpharians by Eric Borneman - Reefkeeping Magazine
- Soft corals and sea fans - List of families and genera
- Soft coral atlas of the Great Barrier Reef - The Soft Coral Atlas of the Great Barrier Reef contains distribution maps, detailed ecological information and colour photographs of the 36 most common genera of soft corals and sea fans (Alcyonacea, Octocorallia) found on the Great Barrier Reef. (free and available for download)
- (Mather Bennett 1994): Mather, P., Bennett, I., A coral reef handbook, Surrey Beatty and Sons: Chipping Norton, 1994.