Chagres Formation
| Chagres Formation Stratigraphic range: Tortonian-Messinian ~11.6–5.3 Ma | |
|---|---|
| Type | Formation |
| Sub-units | Río Indio Member |
| Lithology | |
| Primary | Sandstone |
| Other | Siltstone |
| Location | |
| Coordinates | 9°12′N 80°18′W / 9.2°N 80.3°WCoordinates: 9°12′N 80°18′W / 9.2°N 80.3°W |
| Approximate paleocoordinates | 9°00′N 79°24′W / 9.0°N 79.4°W |
| Region | Colón Province |
| Country |
 |
| Type section | |
| Named for | Chagres River |
The Chagres Formation is a geologic formation in Panama. The sandstones and siltstones were deposited in a shallow marine environment and preserve fossils dating back to the Middle to Late Miocene period.
Fossil content
Various fossils have been found in the Chagres Formation:[1]
Fishes
- Alopias superciliosus
- Carcharhinus brachyurus
- Carcharhinus cionei
- Carcharhinus obscurus
- Carcharhinus plumbeus
- Carcharhinus signatus
- Carcharodon plicatilis
- Centrophorus granulosus
- Dalatias licha
- Galeocerdo cuvier
- Galeorhinus galeus
- Hemipristis serra
- Heptranchias perlo
- Heterodontus sp.
- Isistius sp.
- Megalodon
- Mustelus sp.
- Myliobatis sp.
- Premontreia sp.
- Pristiophorus sp.
- Pseudocarcharias kamoharai
- Rhizoprionodon sp.
- Sphyrna lewini
- Squalus sp.
- Squatina sp.
- Trigonognathus sp.
Mammals
- Isthminia panamensis[2]
- Nanokogia isthmia
See also
References
- ↑ Pina at Fossilworks.org
- ↑ STRI 650009 at Fossilworks.org
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