Cowboy Spring Formation
The Cowboy Spring Formation is a geologic formation in southwestern New Mexico and southeastern Arizona. It preserves fossils dating back to the late Cretaceous period.
| Cowboy Spring Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Formation |
| Underlies | Timberlake Formation |
| Overlies | Mojado Formation |
| Thickness | Over 1,000 feet (300 m) |
| Lithology | |
| Primary | Limestone conglomerate |
| Other | Sandstone, shale, claystone, tuff |
| Location | |
| Coordinates | 31.6085°N 108.6362°W |
| Region | New Mexico |
| Country | United States |
| Type section | |
| Named for | Cowboy Spring |
| Named by | Zeller and Alper |
| Year defined | 1965 |
Cowboy Spring Formation (the United States) Cowboy Spring Formation (New Mexico) | |
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