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 ...

Deep within Mammoth Cave, the world’s longest cave system, paleontologists have uncovered the remains of a never-before-seen ...

Scientists have found ancient nail tooth shark fossils deep inside Mammoth Cave in Kentucky, revealing new information about ...