More than 300 million years ago, during the Carboniferous Period, much of northern Illinois outside Chicago—including what is ...

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 ...

Step back into the Carboniferous period, when colossal arthropods dominated the land 345-290 million years ago. Among these ancient creatures was Arthropleura, a remarkable millipede that ...

The swamps of the Late Carboniferous Period teemed with giant insects, but it’s time for the amniotes - the ancestors of all reptiles, birds, and mammals to come ...

Geologic exploration showed that the Carboniferous was a great period of coal production not only in Great Britain but also in many other parts of the world.

Amniotes are thought to have diverged from amphibians at the dawn of the Carboniferous period, about 355 million years ago. Mammals would diverge from reptiles and birds only 30 million years later.

These giant millipede-like creatures were the length of a car and likely roamed Earth during the Carboniferous Period, between 359 million and 299 million years ago.

During the Carboniferous Period, Earth's atmospheric oxygen levels surged, helping some plants and animals grow to gigantic proportions. One notable example was Arthropleura, the biggest bug ever ...