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The round circles with thin pointed leaflets radiating outward are a form of calamites foliage.
2008-12-02
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Larry pried off the part of this rock containing the lepidodendron fossil, and found this mass of ferns on the back. He'll have a difficult time figuring out which side to display!
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The Lepidodendron, also known as the scale tree, is related to the club mosses, and could reach a height of 100 feet.
