Monmouth Group

Last updated
Monmouth Group
Stratigraphic range: Late Santonian to late Maastrichtian, 84–66.5  Ma
Type Group
Sub-unitsSee text
Underlies Rancocas Group
Overlies Magothy Formation
Lithology
Primary Marl, glauconite
Location
Region New Jersey, Pennsylvania, New York, Delaware, Maryland
Country United States

The Monmouth Group or Matawan Group is a major Late Cretaceous-aged geologic group in the eastern United States, known from New Jersey, Pennsylvania, New York, Delaware, and Maryland. [1] It comprises a number of geological formations dating from the Santonian to nearly the end of the Maastrichtian, deposited in nearshore environments off the coast of eastern Appalachia, including deltaic and marine ecosystems. [2] It is highly fossiliferous and preserves a diverse array of fossils, including some of the most prominent dinosaur-bearing deposits of eastern North America.

The following formations are included, from youngest to oldest: [2] [3] [1]

See also

References

  1. 1 2 "Geolex — Monmouth publications". ngmdb.usgs.gov. Retrieved 2024-11-12.
  2. 1 2 "PBDB". Paleobiology Database . Retrieved 2024-11-12.
  3. ↑ "Coastal Plain Rock Units (Stratigraphic Chart) | The Delaware Geological Survey". www.dgs.udel.edu. Retrieved 2024-11-12.
  4. ↑ "Geolex — RedBank publications". ngmdb.usgs.gov. Retrieved 2024-11-12.
  5. ↑ "Geolex — Severn publications". ngmdb.usgs.gov. Retrieved 2024-11-12.
Rock Strata.jpg

This article about a specific stratigraphic formation in New Jersey is a stub. You can help Wikipedia by expanding it.

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.