Domain Eukaryota Class Rhodophyceae Rank Genus | Division Rhodophyta Order Coralline algae | |
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Similar Coralline algae, Lithophyllum, Amphiroa, Mesophyllum, Lithothamnion |
Porolithon is a genus of red alga comprising 15 species. The Porolithon are the primary reef building algae. When coral reefs reach sea level, the corals break under the high energy impact of the waves, while the coralline red algae, primarily Porolithon, continuing building and cementing the reef structure.

Species
Some species in the genus are:





References
Porolithon Wikipedia(Text) CC BY-SA