Wikipedia

Calvert Formation

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.

Calvert Formation
Stratigraphic range: Miocene
Outcrops of the Calvert Formation at the Calvert Cliffs State Park
TypeFormation
Unit ofChesapeake Group
UnderliesChoptank Formation
OverliesOld Church Formation
Location
Region Maryland, Virginia, Delaware
CountryUnited States
Type section
Named forCalvert County

Fossils edit

 
Carcharocles megalodon partially buried in gravel along the Calvert Cliffs, Maryland
 
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 edit

Rays and other cartilaginous fish edit

Bony fish edit

Cetaceans edit

Pinnipeds edit

Crocodilians edit

Invertebrates edit

Terrestrial mammals edit

Birds edit

See also edit

References edit

  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.
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