So they are loose on the ground, but you can also find fossils embedded in the shale bedrock on the edges of the pit. Crinoids: Crinoids, also known as sea lilies, appear to be sea plants but are not plants at all. All State Fossils. Many of the old mines and quarries in Pennsylvania are great places to search for gems and minerals. Fossil hunters from all around have come to dig through the sedimentary rocks that formed in the ocean, hoping to find a rare fossil. Fossils have been recovered from every rock type in the Llewellyn but are predominantly found in the siltstone, shale, and coal layers. The Montour Preserve Fossil Pit consists of approximately one acre of exposed Mahantango Formation shale. Formed some 395 million years ago during the Devonian Period when much of Pennsylvania was covered by a warm, shallow sea, these shales are particularly rich in fossils. The state also has a number of other quarries and rivers where marine fossils can be found. I have visited this site numerous times just to walk around and see what I could find. You can find a variety of fossils there, including trilobites, brachiopods and gastropods. Of course over time this ocean dried up, but there are still remnants to be found. Tips - The fossils were actually dumped here, and originally came from a construction site on I-81. The most popular and most often found fossil in Pennsylvania is Phacops Rana , which is also the state fossil. The old tailing piles are often full of quartz, garnet, pyrite, and calcite crystals. St. Clair, Pennsylvania ITEM# PLANT-Pennsylvania-0001 This is a nice example of a variety of fossil plants (mostly ferns) from the Pennsylvanian of the Llewellyn Formation. Another great place to hunt for fossils in Pennsylvania is the man-made lake that was created in a fossil bed! Pennsylvania is one of the few places where one can find these very detailed white (sometimes yellow) ferns on a striking contract of black organic shale. The most commonly found fossils at this site are Pelecypods (oyster, mussel and clam-type species), Cephalopods, Brachiopods (lamp shells), Byrozoans (moss-like animals), Crinoids, Gastropods (snail-like creatures), Corals … Located in the central region of the state, this park is centered around Beltzville Lake, which was originally the site of a quarry.

Fossils can be abundant here if you know where to look. The Mud Grubb Lake located between the towns of Mountville and Columbia in the Lancaster County, the Brookdale Mine located at Phoenixville in Chester County and the Rossville Road Cut which is around a mile to the north of Rossville are some locations in Pennsylvania to find quartz. Fossil hunters from all around have come to dig through the sedimentary rocks that formed in the ocean, hoping to find a rare fossil. Relative and fossil age dating of the Llewellyn places it in the late-Middle to Late Pennsylvanian, being deposited between 308 to 300 (±1) million years ago. There are quite a few places where quartz crystals can be found in Pennsylvania. Crinoids are from the echinoderm species - a group of invertebrate animals that includes sea urchins, brittle stars, sand dollars, starfish, and sea cucumbers. In other parts of Pennsylvania, a wide variety of fossils occur.