They are between 54 and sixty-five million years old, Eocene Epoch. We have leaf fossils from the Fort Union formation from Glendive Montana. They are about 50 million years old from the Eocene Eroch of the Cenozoic Era. We also have fossils from the Green River formation Also known for high quality fossils. They are found in Francis Creek Shale in the Carbondale Formation. These are from the Pennsylvanian Epoch of the Carboniferous Period and are about 300 million years old.
They often have a white coating called pro for light we also have from fossils from Mazon Creek, Illinois Mazon Creek fossils are famous for the quality of fossils found there. They are found in school kill county Pennsylvania. The matrix of these fossils is Coal shale. Also from Montana we have metasequoia fossils from beaver head County Montana.Īs an overview… The Pennsylvania fern fossils are about 300 million years old they are from a time when a great many coal deposits formed around the world. We have leaf fossils from Glendive Montana.
We have Many types of leaf fossils from the Green River formation, known for high quality fossils. We also have fern fossils from Mazon Creek, Illinois The Pennsylvania fern fossils are found in Schuylkill county Pennsylvania. leaves and flowers break down quickly and need Goldielocks conditions to fossilize. Even though plants have been around since the Ordovician Period, plant fossils are harder to find. Some of the more popular places our plant fossils come from include Pennsylvania, Mazon Creek, IL, Utah, and Montana.