Williamsburg Formation Explained

Williamsburg Formation
Type:	Formation
Age:	Thanetian (Clarkforkian) ~
Period:	Thanetian
Prilithology:	Sandstone
Otherlithology:	Phosphorite
Namedfor:	Williamsburg County, South Carolina
Coordinates:	33.7°N -79.8°W
Paleocoordinates:	34.8°N -62.6°W
Unitof:	Black Mingo Group
Overlies:	Rhems Formation

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.

Fossil content

The following fossils were reported from the formation:^[1]

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.

Crocodylians

• Bottosaurus sp.
• Hyposaurus sp.
• Thoracosaurus sp.
• Eusuchia indet.

Snakes

• Palaeophis sp.

See also

• List of fossiliferous stratigraphic units in South Carolina
• Paleontology in South Carolina

References

Bibliography

Notes and References

1. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=Black%20Mingo%20&group_formation_member=Williamsburg Williamsburg Formation