Calvert Formation

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Calvert Formation
Stratigraphic range: Miocene
2016-07-20 10 17 03 Cliffs to the south of Grays Creek in Calvert Cliffs State Park, Calvert County, Maryland.jpg
Outcrops of the Calvert Formation at the Calvert Cliffs State Park
Type Formation
Unit of Chesapeake Group
Underlies Choptank Formation
Overlies Old Church Formation
Location
RegionFlag of Maryland.svg  Maryland,Flag of Virginia.svg  Virginia,Flag of Delaware.svg  Delaware
CountryUnited States
Type section
Named for Calvert County

The Calvert Formation is a geologic formation in Maryland, Virginia, and Delaware. It preserves fossils dating back to the early to middle Miocene epoch of the Neogene period. It is one of the three formations which make up the Calvert Cliffs, all of which are part of the Chesapeake Group.

Contents

Fossils

Carcharocles megalodon partially buried in gravel along the Calvert Cliffs, Maryland Meg in gravel.jpg
Carcharocles megalodon partially buried in gravel along the Calvert Cliffs, Maryland
Fossils from the Calvert Formation, Zone 10, Calvert Co., MD (Miocene) Calvert Zone 10 Calvert Co MD 2.jpg
Fossils from the Calvert Formation, Zone 10, Calvert Co., MD (Miocene)

The Calvert Formation is extremely fossiliferous. Some of the fossil species represented include the following: [1] [2]

Sharks

Rays and other cartilaginous fish

Bony fish

Cetaceans

Pinnipeds

Crocodilians

Invertebrates

Terrestrial mammals

Birds

See also

Related Research Articles

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<span class="mw-page-title-main">Chesapeake Group</span> Fossiliferous geologic group in the eastern U.S.

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The Temblor Formation is a geologic formation in California. It preserves fossils dating back from the Late Oligocene to the Middle Miocene of the Neogene period. It is notable for the famous Sharktooth Hill deposit.

The Jewett Sand Formation is a geologic formation in California, USA. It preserves fossils dating back to the Miocene Epoch of the Neogene period.

The Tirabuzon Formation is a geologic formation in Mexico. It preserves fossils dating back to the Neogene period, Pliocene epoch.

The Weissenegg Formation is a geologic formation in Austria. It preserves fossils dating back to the Miocene period.

References

  1. Godfrey, Stephen J., ed. (2018-09-25). "The Geology and Vertebrate Paleontology of Calvert Cliffs, Maryland, USA". Smithsonian Contributions to Paleobiology (100): 2–274. doi: 10.5479/si.1943-6688.100 . ISSN   1943-6688.
  2. "Paleobiology Collections Search". collections.nmnh.si.edu. Retrieved 2020-08-14.