Gorgonin

Gorgonin is a complex protein that makes up the horny skeleton of the holaxonia suborder of gorgonians. It frequently contains appreciable quantities of bromine, iodine, and tyrosine. ==Scientific use== Research has shown that measurements of the gorgonin and calcite within species of gorgonia can be useful in paleoclimatology and paleoceanography...
Found on http://en.wikipedia.org/wiki/Gorgonin

gorgonin

(from the article `sea fan`) ...polyp in the colony has some multiple of six tentacles, as opposed to the eightfold symmetry of the similar black coral. A central internal ...
Found on http://www.britannica.com/eb/a-z/g/51
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