Beecher's Trilobite Beds is a Konservat-Lagerstätten of Late Ordovician (Caradoc) age located within the Frankfort Shale in Cleveland's Glen, Rome, Oneida Co., New York, USA. Only 3-4 centimeters thick, Beecher's Trilobite Beds have yielded numerous exceptionally preserved trilobites with the ventral anatomy and soft tissue intact, the soft tissue preserved by pyrite replacement. Pyritisation allows the use of X-rays to study fine detail of preserved soft body parts still within the host rock. Pyrite replacement of soft tissue is unusual in the fossil record; the only Lagerstätten thought to show such preservation were Beechers Trilobite Beds, the Devonian Hunsrück Slates of Germany, and the Jurassic beds of La Voultesur- Rhône in France, although new locations are coming to light.