| Bone Spring Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Formation |
| Underlies | Cutoff Shale |
| Thickness | 1,000 m (3,300 ft) |
| Lithology | |
| Primary | Limestone |
| Other | Shale, sandstone |
| Location | |
| Coordinates | 31°51′03″N 104°58′54″W / 31.8508°N 104.9817°W |
| Region | Texas New Mexico |
| Country | United States |
| Type section | |
| Named for | Bone Spring Canyon |
| Named by | Blanchard and Davis |
| Year defined | 1929 |
  Bone Spring Formation (the United States)  Bone Spring Formation (Texas) | |
The Bone Spring Formation is a geologic formation found in the Delaware Basin in Texas and New Mexico. It preserves fossils dating back to the Leonardian Age of the Permian Period.[1]