Hexagonaria
This Hexagonariais from the Silurian.
http://fossilsaustralia.com/hexagonaria-compound-rugose-coral/
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Hexagonaria Compound Rugose Coral
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Rugose Coral
Rugose-Coral-9
This Solitary Rugose Coral is from the Silurian.
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Crinoids
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Crinoid
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Rugose Coral
Rugose-Coral-8
This Solitary Rugose Coral is from the Silurian.
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Rugose Coral
Rugose-Coral-7
This Rugose Coral is from the Silurian.
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Crinoids
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Crinoid
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Favosites (“Brain Coral”)
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Rugose-Coral
Rugose-Coral-6
This Rugose Coral is from the Silurian.
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Crinoids
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Favosites (“Brain Coral”)
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Crinoids
Crinoids
Crinoids have an external skeleton made of calcium carbonate plates covered by a thin skin. The plates are held together with ligaments or muscles. Crinoids are the oldest of the living echinoderms with a fossil record stretching back 450 million years. Most Crinoids were filter feeders consuming plankton and decaying organic matter. To feed they spread their feeding arms to sieve the passing sea water for microscopic organisms. Living relatives include Feather stars and Sea lilies.
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Solitary Rugose Coral
Rugose-Coral-5
This Solitary Rugose Coral is from the Silurian.
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Solitary Rugose Coral
Rugose-Coral-4
This Solitary Rugose Coral is from the Silurian.
http://fossilsaustralia.com/solitary-rugose-coral-4/
http://en.wikipedia.org/wiki/Rugose_coral
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Syringopora (tabulate coral)
Syringopora
Tabulate corals achieved a maximum distribution in shallow and warm Silurian and Devonian seas. Syringopora like other tabulate corals lived on the crests of the reef. Syringopora preferred shallow, moving water with settling calcareous sediment. The clumps of narrow, cylindrical, thick walled corallites, which were set far apart were irregularly joined together by horizontal tubular fannel-shaped connections. This Syringopora is from the Silurian.
