| Pajarito Formation | |
|---|---|
| Stratigraphic range: Albian ~ | |
 Pajarito Formation beds (lower left) in road cut on I-25, Romeroville, New Mexico, USA | |
| Type | Formation |
| Unit of | Dakota Group |
| Underlies | Romeroville Sandstone, Graneros Shale. Dakota Sandstone |
| Overlies | Mesa Rica Sandstone |
| Thickness | up to 20 m (66 ft)[1] |
| Lithology | |
| Primary | Shale |
| Other | Sandstone, siltstone |
| Location | |
| Coordinates | 35°04′43″N 103°47′59″W / 35.0787°N 103.7998°W |
| Region | New Mexico, west Texas |
| Country |  United States |
| Type section | |
| Named by | Dobrovolny, Summerson, and Bates |
| Year defined | 1947 |
  Pajarito Formation (the United States)  Pajarito Formation (New Mexico) | |
The Pajarito Formation is a geologic formation in eastern New Mexico and west Texas. It preserves fossils dating back to the Albian Age of the Cretaceous Period.[2]