| Trujillo Formation | |
|---|---|
| Stratigraphic range: Late Triassic, | |
 Trujillo Formation in Texas | |
| Type | Formation |
| Unit of | Dockum Group |
| Overlies | Tecovas Formation |
| Thickness | 45–210 feet (14–64 m) |
| Lithology | |
| Primary | Sandstone |
| Other | conglomerate, mudstone |
| Location | |
| Coordinates | 35°15′00″N 103°01′54″W / 35.2501°N 103.0318°W |
| Region | Texas New Mexico |
| Country | United States |
| Type section | |
| Named for | Trujillo Creek |
| Named by | C.N. Gould |
| Year defined | 1907 |
  Trujillo Formation (the United States)  Trujillo Formation (Texas) | |
The Trujillo Formation is a geologic formation in Texas[1] and New Mexico.[2] It preserves fossils dating back to the upper Triassic period.[2] It is also known as the Trujillo Sandstone.