Finlay Limestone
| Finlay Limestone | |
|---|---|
| Stratigraphic range: | |
Limestone mountains of Finlay Limestone in Aquiles Serdán Municipality near Chihuahua City. | |
| Type | Formation |
| Unit of | Fredericksburg Group |
| Underlies | Del Norte Formation |
| Overlies | Cox Sandstone |
| Thickness | 130–426 feet (40–130 m) |
| Lithology | |
| Primary | Limestone |
| Other | Sandstone |
| Location | |
| Coordinates | 31°22′N 105°36′W / 31.36°N 105.60°W |
| Region | New Mexico Texas Chihuahua |
| Country | United States Mexico |
| Type section | |
| Named for | Finlay Mountains |
| Named by | G.B Richardson |
| Year defined | 1904 |
The Finlay Limestone is a geologic formation in western Texas, southern New Mexico, and northern Chihuahua. It preserves fossils dating back to the early Cretaceous period.