| Tarrant Formation | |
|---|---|
| Stratigraphic range: Middle Cenomanian | |
| Type | Geological formation |
| Unit of | Eagle Ford Group |
| Lithology | |
| Primary | Calcareous sandstone |
| Other | Siltstone, limestone, shale |
| Location | |
| Region | Texas |
| Country |  United States |
The Tarrant Formation is a geologic formation that dates to the Middle Cenomanian stage of the Late Cretaceous.