Silva Carbonaria, the charcoal forest, the dense old-growth forest of beech and oak that formed a natural boundary during the Late Iron Age through Roman times into the Early Middle Ages across what is now Belgium
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Carbonária, an anti-clerical, revolutionary, conspiratorial society, originally established in Portugal in 1822
A single fossil from the Cape Breton, Nova Scotia area was interpreted as a fossil dragonfly larvae and described by Samuel Hubbard Scudder in 1876 as Libellula carbonaria.