| Woodbury Formation | |
| Type: | Geological formation |
| Age: | Early Campanian, |
| Period: | Campanian |
| Prilithology: | Clay, Silt |
| Otherlithology: | Sand |
| Country: | United States |
| Underlies: | Englishtown Formation |
| Overlies: | Merchantville Formation |
| Thickness: | 15 m |
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]