Woodbury Formation Explained

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] However, a more accurate date make range from 83.6 to around 77.9 MYA.[3]

See also

Notes and References

  1. Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. .
  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.
  3. Stringer . Gary L. . Oman . Luke D. . Badger . Robert F. . November 2016 . Woodbury Formation (Campanian) in New Jersey yields largest known Cretaceous otolith assemblage of teleostean fishes in North America . Proceedings of the Academy of Natural Sciences of Philadelphia . en . 165 . 1 . 15–36 . 10.1635/053.165.0101 . 0097-3157.