The Oranda Formation is a geologic formation in Virginia. It preserves

fossils A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in ...

dating back to the Ordovician period. This nomenclature is not in current usage. It has been reallocated to Stickley Run Member of the

Martinsburg Formation The Ordovician Martinsburg Formation (Om) is a mapped bedrock unit in Pennsylvania, New Jersey, Maryland, Virginia, and West Virginia. It is named for the town of Martinsburg, West Virginia for which it was first described. It is the dominant roc ...

and Edinburg Formation in Virginia and West Virginia, and to the Martinsburg and

Chambersburg Formation The Chambersburg Formation is a geologic formation in Virginia. It preserves fossils dating back to the Ordovician period. See also * List of fossiliferous stratigraphic units in Virginia * Paleontology in Virginia Paleontology in Virginia refe ...

in Pennsylvania.Oranda
USGS National Geologic Map Database, Geolex — Unit Summary. Last Modified: Wed 31 May 2023.

References

* Ordovician geology of Virginia Ordovician southern paleotemperate deposits {{Virginia-geologic-formation-stub