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Fossils have been recovered from every rock type in the Llewellyn but are predominantly found in the siltstone, shale, and coal layers. The compression fossils from the Llewellyn formation are well known for the striking white color on the dark stone. An important location for these fossils is near St. Clair, Pennsylvania.
During the Industrial Revolution, Carboniferous-aged coal deposits in Pennsylvania were the sites of serendipitous discoveries of early fossil tetrapod trackways. Such discoveries generally occur when the excavation of coal mines removes the rock underlying the trackway, leaving it exposed on the tunnel's ceiling. [10]
The Five Points cannel coal mine was first publicized as a fossil site by Robert Hook and Donald Baird in 1994, who collected tetrapod fossils comparable to those found at Linton. However, the mine at Five Points was reclaimed around the same time, so the fossiliferous spoil piles are no longer accessible for further collection. [10] [11]
Most of the coal being mined from this section is from the Pennsylvanian-aged formations. Along with the Mazon Creek fossil field in Illinois, a tremendous amount of plant fossils has been studied from this area. [13] Landslides and acid mine drainage are two principal hazards of the area. In the past, underground mine fires have also been a ...
Fossil of the Middle-Late Ordovician giant trilobite Isotelus. †Isotelus †Isotelus gigas †Kiaeropterus †Kingstonia †Kladognathus †Kootenia †Kutorgina †Lancastria †Langlieria †L. radiatus – type locality for species †L. smalingi – type locality for species [2] †Lepidostrobus †Leptomitus †Lenisicaris
In 1942, Office of War Information photographer John Collier visited the Montour No. 4 Mine of the Pittsburgh Coal Company in Pennsylvania.
Waynesburg, Pennsylvania [1] The Waynesburg Formation is a coal, sandstone, and siltstone geologic formation in West Virginia and Pennsylvania . It preserves fossils dating back to the Permian period .
This list of the Paleozoic life of Pennsylvania contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Pennsylvania and are between 538.8 and 252.17 million years of age.