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Bryozoa - Fenestellids
Fenestellids belong to the Phylum Bryozoa (moss animals). They were tiny, sheet-like colonial animals that preferred warm, tropical waters. Similar to corals they built calcium carbonate skeletons. |
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![](image/earth_evo/06/rocks/CH218Fenestella.jpg)
Fenestella
Bryozoa
Upper Carboniferous, Shanxi, China
Size: 15x14cm
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