Potrerillos Formation, Mexico
From The Right Wiki
Jump to navigationJump to search
| Potrerillos Formation | |
|---|---|
| Stratigraphic range: Maastrichtian-Early Paleocene ~ | |
| Type | Formation |
| Unit of | Difunta Group |
| Sub-units | Upper Mudstone member |
| Lithology | |
| Primary | Mudstone |
| Other | Grainstone |
| Location | |
| Coordinates | 26°00′N 100°48′W / 26.0°N 100.8°W |
| Approximate paleocoordinates | 31°42′N 82°42′W / 31.7°N 82.7°W |
| Region | Coahuila |
| Country | File:Flag of Mexico.svg Mexico |
Potrerillos Formation, Mexico (Mexico) | |
The Potrerillos Formation is a geologic formation in Mexico. It preserves fossils dating back to the Early Paleocene period.[1]
Description
The Potrerillos Formation was subdivided into five members by McBride (1974), with the second highest, the Upper Mudstone Member. Foraminifera in the lower members indicate a Maastrichtian age, while fossils in the upper members indicate a Paleocene age. Fossil remains are abundant and include transported remains of corals, gastropods, bivalves, shark teeth, and bone fragments.[1]
Fossil content
The following fossils have been reported from the formation:[1]
See also
References
- ↑ 1.0 1.1 1.2 Potrerillos Formation at Fossilworks.org
- ↑ 2.0 2.1 2.2 2.3 Vega & Perrilliat, 1995
Bibliography
- Vega, F.J.; Perrilliat, M.D.C. (1995), "On some Paleocene invertebrates from the Potrerillos Formation (Difunta Group), northeastern Mexico", Journal of Paleontology, 69 (5): 863–869, Bibcode:1995JPal...69..862V, doi:10.1017/S0022336000035538