Exeter Sandstone
| Exeter Sandstone | |
|---|---|
| Stratigraphic range: | |
Exeter Formation capping Steamboat Butte, New Mexico, US | |
| Type | Formation |
| Unit of | Dockum Group |
| Underlies | Bell Ranch Formation |
| Overlies | Sheep Pen Sandstone |
| Thickness | 24 meters (79 ft) |
| Lithology | |
| Primary | Sandstone |
| Location | |
| Coordinates | 36°58′32″N 103°12′22″W / 36.9756°N 103.2060°W |
| Region | Colorado New Mexico |
| Country | United States |
| Type section | |
| Named for | Exter Post Office |
| Named by | W.T. Lee |
| Year defined | 1902 |
The Exeter Sandstone is a geologic formation exposed in northeastern New Mexico. Its age is poorly controlled, but it is thought to have been deposited during the middle Jurassic.