Fossil fern, fossil plant, Carboniferous period, 300 million years old, Neuropteris sp., Palaeobotany, Paleobotany by Cyclopaedia, £18.00
Extinct horsetail, #fossil plant, Carboniferous period, 300 million years old, Sphenophyllales sp., Palaeobotany, Paleobotany
300 million years ago many parts of the Earth were covered in dense fern forests. These Fern Forests grew very well in swamps which covered parts of North America. Coal begins to form when vegetation dies in wet swampy areas. The water does not allow the vegetation to decompose properly so it turns into Peat. When the Peat is covered in sediment and compressed with great pressure... it turns into coal. P.S. You can Thank the Ferns... for the Coal!
Image from http://www.neterm.net/serendipity/uploads/FossilFern.png.
Fossil Fern- "Fossil Fern This is a fossil fern that I found in Russellville AR and its from the Pennsylvanian, an era within the Carboniferous, which was about 300 million years ago, rounded off of course. I believe it to be a neuropteris fern."