The site reveals a diverse ecosystem of early land-dwelling animals and plants from a poorly ... has a rich variety of ...

I am looking at plant-insect interactions, specifically within the Pennsylvanian Period using a unique set of fossils called coal balls. What are coal balls? Well to start, coal balls aren't ...

The rocks of this site are considered to be iconic for this period of the history of Earth and are the world’s thickest and most comprehensive record of the Pennsylvanian strata (dating back 318 to ...

In the U.S., scientists divide the Carboniferous into two parts: the earlier Mississipian (359.2 million to 318.1 million years ago) and the later Pennsylvanian ... of this plant debris formed ...