Identified from remains found inside fossilized Carboniferous tree stumps, they were small, agile, lizard-like animals. Africa collided with eastern North America in the late Pennsylvanian ...

Rare evidence about the lives of an ancient group of arthropods has been uncovered in the U.S. The findings of the study are ...

the Carboniferous period saw a boost in atmospheric oxygen and vast quantities of carbon dioxide trapped in what eventually became Earth's coal deposits. Terrestrial plant and animal life ...