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The Brymbo Fossil Forest



Sites yielding Pennsylvanian (late Carboniferous) coal floras are well known across Europe and North America, but they usually only yield drifted remains of the plants. To understand the ecology of these ancient tropical wetlands properly it is essential that we study in situ remains of the plants. During recent re-development work of a disused steelworks in the Denbigh Coalfield (north Wales) the remains of a stand of mainly arborescent club mosses and horsetails have been discovered, which is providing new insights into how these unusual plants grew.