This time period took place 359 to 299 million years ago. 3 min read The Carboniferous period, part of the late Paleozoic era, takes its name from large underground coal deposits that date to it.

Dominated by carbon-rich swamps and forests proliferating across Earth's rocky surface, the Carboniferous period saw a boost in atmospheric oxygen and vast quantities of carbon dioxide trapped in what ...

DRAW two lines on your map, the upper one running from the mouth of the St. Lawrence westward nearly to St. Paul on the Mississippi, and the lower one from the neighborhood of St. John’s in ...

More than 300 million years ago, during the Carboniferous Period, much of northern Illinois outside Chicago — including what is now the Mazon Creek (“muh-ZAHN”) fossil site — was alive with ancient ...

Kentucky isn’t the first place one would think of looking for oceanic fossils, but during the Carboniferous Period (from about 359 to 299 million years ago) many parts of North America were under ...

Abstract Based on the strata, lithologic association and coal-bearing property – using the method of synthetic correlation – the relation between limestone layers and the thick coal seam of the ...