Carboniferous
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Carboniferous englanniksi
carboniferous
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.
the Carboniferous period
{{quote-journal|en|date=2017-08-09|author=Mark Carnall|journal=The Guardian|title=Why do cephalopods produce ink? And what's ink made of, anyway?|url=https://www.theguardian.com/science/2017/aug/09/why-do-cephalopods-produce-ink-and-what-on-earth-is-it-anyway