sentences:  Very few fossils exist in the Juniata Formation, but different types of trace fossils such as tracks and burrows can commonly be found.Relative age dating of the Juniata places it in the Upper Ordovician period, being deposited between 488.3 and 443.7 (±10) million years ago.It rests conformably atop the Bald Eagle Formation in Pennsylvania and the Martinsburg Formation in Maryland, and conformably below the Tuscarora Formation.