Imperial Formation Explained

Imperial Formation
Type:	Two separate geologic formations
Age:	1.) Canada: Devonian of Paleozoic Era. 2.) California: Pliocene of Cenozoic Era.
Region:	1.) Northwest Territories, Canada 2.) Colorado Desert, Imperial County, California, United States
Underlies:	Palm Spring Formation (California)
Overlies:	Ocotillo Formation (California)

The Imperial Formation is the name of two distinct and unrelated geologic formations in North America, of different geologic Eras.

Separate formations

Canadian Paleozoic Era formation

The older Imperial Formation occurs in the Northwest Territories of Canada. It preserves fossils dating back to the Devonian period of the Paleozoic Era.^[1]

Californian Cenozoic Era formation

The younger Imperial Formation occurs in the Colorado Desert, in Imperial County of Southern California. It dates to the Zanclean−Lower Pliocene stage of the Pliocene Epoch, during the Neogene Period of the Cenozoic Era.

It underlies the Palm Spring Formation, and overlies the Ocotillo Formation.^[2]

See also

• List of fossiliferous stratigraphic units in California
• List of fossiliferous stratigraphic units in Northwest Territories

Notes and References

1. Web site: Fossilworks: Gateway to the Paleobiology Database. ((Various Contributors to the Paleobiology Database)). 17 December 2021. dmy-all.

   Paleozoic Era Canada.

2. https://sdsu-dspace.calstate.edu/handle/10211.10/3 San Diego State University.edu: "Environments of deposition, Pliocene Imperial Formation, Southeast Coyote Mountains, Imperial County, California"