The Williamsburg Formation is a geologic formation in South Carolina consisting of sandy shale and clayey sand.[1] It is a member of the Black Mingo Group and overlays the Rhems Formation. It preserves fossils, among others coprolites, dating back to the Paleogene period.
| Williamsburg Formation | |
|---|---|
| Stratigraphic range: Thanetian (Clarkforkian) ~ | |
| Type | Formation |
| Unit of | Black Mingo Group |
| Overlies | Rhems Formation |
| Lithology | |
| Primary | Sandstone |
| Other | Phosphorite |
| Location | |
| Coordinates | 33°42′N 79°48′W / 33.7°N 79.8°W |
| Approximate paleocoordinates | 34°48′N 62°36′W / 34.8°N 62.6°W |
| Region |  South Carolina |
| Country |  United States |
| Type section | |
| Named for | Williamsburg County, South Carolina |
Fossil content
editThe following fossils were reported from the formation:[1]
Mammals
editReptiles
edit- Agomphus pectoralis
- A. aff. alabamensis
- Osteopygis emarginatus
- Trionyx virginiana
- Adocus sp.
- ?Bothremys sp.
- Chelonioidea indet.
- Cheloniidae indet.
- Pelomedusoides indet.
- Taphrosphyini indet.
- Toxochelyinae indet.
- Crocodylians
- Snakes
See also
editReferences
edit- ^ a b Williamsburg Formation at Fossilworks.org
Bibliography
edit- Sawyer, G. T (1998), "Coprolites of the Black Mingo Group (Paleocene) of the South Carolina", Transactions of the American Philosophical Society, 88 (4): 221–228, doi:10.2307/1006676, JSTOR 1006676
- Schoch, R. M (1998), "Late Paleocene land-mammals from the Williamsburg Formation (Black Mingo Group) of South Carolina", Transactions of the American Philosophical Society, 88 (4): 229–245, doi:10.2307/1006677, JSTOR 1006677
- Schoch, R. M (1985), "Preliminary description of a new late Paleocene land-mammal fauna from South Carolina, U.S.A.", Postilla, 196: 1–13
- Van Nieuwenhuise, Don; Colquhoun, Donald (1982), "The Paleocene-lower Eocene Black Mingo Group of the east-central coastal plain of South Carolina", South Carolina Geology, 26 (2): 47–67, retrieved 2018-06-26