Williamsburg Formation
The Williamsburg Formation is a geologic formation in South Carolina consisting of sandy shale and clayey sand. 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.
Fossil content
The following fossils were reported from the formation:Mammals
- Ectoganus gliriformis
- E. lobdelli
- ''Mingotherium holtae''
Reptiles
- Agomphus pectoralis
- A. aff. alabamensis
- Osteopygis emarginatus
- Trionyx virginiana
- Adocus sp.
- ?Bothremys sp.
- Chelonioidea indet.
- Cheloniidae indet.
- Pelomedusoides indet.
- Taphrosphyini indet.
- Toxochelyinae indet.
;Snakes
- ''Palaeophis sp.''