Woodbury Formation

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Woodbury Formation
Stratigraphic range: Early Campanian, 83.6–77.9  Ma
Type Geological formation
Underlies Englishtown Formation
Overlies Merchantville Formation
Thickness15 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] However, a more accurate date make range from 83.6 to around 77.9 MYA. [3]

See also

References

  1. ↑ Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp.  ISBN   0-520-24209-2.
  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. 165 (1): 15–36. doi:10.1635/053.165.0101. ISSN   0097-3157.


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