What does carboniferous period mean?

carboniferous period meaning in General Dictionary

from 345 million to 280 million years ago

Sentence Examples with the word carboniferous period

The Upper Carboniferous period was in the main terrestrial, and during it were laid down the coal-seams of New South Wales; they are best developed in the basin of the Hunter river, and they extend southward, covered by Mesozoic deposits, beyond Sydney.

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