| Woodbury Formation | |
|---|---|
| Stratigraphic range: Early Campanian, | |
| Type | Geological formation |
| Underlies | Englishtown Formation |
| Overlies | Merchantville Formation |
| Thickness | 15 m |
| Lithology | |
| Primary | Clay, Silt |
| Other | Sand |
| Location | |
| Region |  New Jersey |
| Country | United States |
The Woodbury Formation is a Mesozoic geologic formation in New Jersey, United States. It primarily consists of massive dark gray clays and silts with carbonized wood fragments and pyrite, deposited in a marine setting.
The remains of the dinosaur Hadrosaurus have been recovered from this formation.[1]
Using radio isotope dating of bivalve shells, the formation has been dated to between 80.5 and 78.5 million years ago.[2]
See also
References
- ↑ Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN 0-520-24209-2.
- ↑ Gallagher, W.B. (2005). "Recent mosasaur discoveries from New Jersey and Delaware, USA: stratigraphy, taphonomy and implications for mosasaur extinction." Netherlands Journal of Geosciences, 84(3): 241.
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