San Andres Formation, United States
The San Andres Formation is a geologic formation in New Mexico and Texas, part of the Permian Basin. The limestones and dolomites preserve fossils dating back to the Permian (Kungurian to Roadian) period.[1]
| San Andres Formation Stratigraphic range: Kungurian-Roadian | |
|---|---|
 San Andres Formation above Glorieta Formation and Yeso Group | |
| Type | Formation |
| Underlies | Grayburg Formation |
| Overlies | Glorietta Formation |
| Lithology | |
| Primary | Limestone |
| Other | Dolomite |
| Location | |
| Coordinates | 33.0°N 105.4°W |
| Approximate paleocoordinates | 4.4°N 33.5°W |
| Region | Texas New Mexico |
| Country |  |
| Extent | Permian Basin |
See also
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