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Carboniferous adjective

  /ˌkɑːbəˈnɪfəɹəs/
  • (geology) Of a geologic period within the Paleozoic era; comprises the lower, middle and upper Mississippian and lower, middle and upper Pennsylvanian epochs from about 345 to 280 million years ago, when coal was laid down.
 carbonifero

carboniferous

carbonifero

Carboniferous properNoun

  /ˌkɑːbəˈnɪfəɹəs/
  • (geology) the Carboniferous period
 Carbonifero
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