Calamite tree seed fern
Fossilised leaves from the extinct Calamite tree which have been preserved in an ironstone concretion. This two-part fossil shows both the fern and its 'negative'. The Calamite was a medium sized tree, growing to around 30 meters (100 feet).
Mazon Creek Fossil Beds, Braidwood, Illinois, USA. Carboniferous, circa 309 million years old.
Length: 7cm width: 4cm depth: 2cm
Measurements are approximate and the minimum size you should expect your item to be. Includes a small display stand.
About Our Fossils
The photos are for guidance purposes only and not of the exact fossil you will recieve, unless otherwise stated under the photo of the item.
As all of our fossils are unique, there will be some variation in the size and colour and shape of each piece, but we do our best to pick out the highest quality items that we have available. If you want to contact us before purchase, stating the item which interests you, we will happily email you a photograph and the dimensions of the actual item you will be buying.
Please note that pictures may not be to scale; always check dimensions. Measurements stated are approximate, they are the minimum size that you should expect your fossil to be.For more information see our buying guide