Stromatoporoidea

Stromatoporoidea is a class of aquatic invertebrates common in the fossil record from the Ordovician through the Devonian. They were especially abundant in the Silurian and Devonian. These invertebrates were important reef-formers throughout the Paleozoic and the Late Mesozoic. The group was previously thought to be related to the corals and place...
Found on http://en.wikipedia.org/wiki/Stromatoporoidea

Stromatoporoidea

(from the article `Devonian Period`) Devonian sedimentary rocks include the spectacular carbonate reef deposits of Western Australia, Europe, and western Canada, where the reefs are ... ...scientists to be skeletal remains of scyphopolyps, either ancestral to the coronates or without modern derivatives. Presumed fossil sea anemones ... ...
Found on http://www.britannica.com/eb/a-z/s/173
No exact match found