The Billman Creek Formation is a Mesozoic geologic formation in south-central Montana.
[1] Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.
[2] The Billman Creek Formation is a unit of the Livingston Group.
This article about a specific stratigraphic formation in the United States is a stub.
You can help Wikipedia by expanding it.