| Laredo Formation | |
| Type: | Formation |
| Age: | Lutetian (Uintan) ~ |
| Period: | Lutetian |
| Prilithology: | Sandstone |
| Otherlithology: | Shale, limestone |
| Region: | Texas Nuevo León, Tamaulipas |
| Country: | |
| Coordinates: | 26.4°N -99.2°W |
| Paleocoordinates: | 28.4°N -89.6°W |
| Unitof: | Claiborne Group |
The Laredo Formation is a geologic formation and Lagerstätte[1] in Texas, United States, and Nuevo León and Tamaulipas, Mexico. It preserves fossils dating back to the Lutetian stage of the Eocene period.[2] Among many other fossils, the formation has provided invertebrates, vertebrates, leaves, pollen and spores and fossil wood of the brackish water palm Nypa sp.[1]