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Ketophyllum

Ketophyllum

Size
20%
Attack
10%
Protection
50%
Speed
00%

The polyps of coral organisms look quite like sea anemones, with a round mouth surrounded by tentacles that trap prey and plankton. Coral animals live in symbiosis with single-celled algae that provide them with food. In return, the algae receive protection against other animals. Most horn corals — so called because of their characteristic shape, like a cow’s horn — had large polyps (bodies) and were solitary, forming a calcareous shell around themselves for protection. There were numerous horn corals of all sizes in the Silurian reefs.

Ketophyllum, Cystiophyllum, Mucophyllum and Holophragma lived separately among other kinds of coral and sponge organisms. Some genera, such as Acervularia and Pychnostylus, formed large colonies.