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The Oklahoma Historical Society established the Spiro Mounds Archaeological Center in 1978 that continues to operate. [5] The site is listed on the National Register of Historic Places and is preserved as Oklahoma's only Archeological State Park and only pre-contact Native American site open to the public.
Etzanoa is a historical city of the Wichita people, located in present-day Arkansas City, Kansas, near the Arkansas River, that flourished between 1450 and 1700. [1] Dubbed "the Great Settlement" by Spanish explorers who visited the site, Etzanoa may have housed 20,000 Wichita people. [2] The historical city is considered part of Quivira. [3]
Oklahoma was a terrestrial environment for most of the ensuing Mesozoic era. [3] The Late Triassic Dockum Group of western Oklahoma preserved remains of archosaurs and temnospondyls, although its fossil record is restricted to a narrow region of the panhandle and is far sparser than the equivalent records in Texas, New Mexico, and Arizona. [98]
Monument Rocks (also Chalk Pyramids) are a series of large chalk formations in Gove County, Kansas, rich in fossils. The formations were the first landmark in Kansas chosen by the U.S. Department of the Interior as a National Natural Landmark. The chalk formations reach a height of up to 70 ft (21 m) and include formations such as buttes and ...
Niobrara Chalk was weathered and opalized in the Valentine phase of the Ogallala Formation. The Niobrara Formation / ˌ n aɪ. ə ˈ b r ær ə /, also called the Niobrara Chalk, is a geologic formation in North America that was deposited between 87 and 82 million years ago during the Coniacian, Santonian, and Campanian stages of the Late ...
For many decades, it was a tourist trap called the Indian Burial Pit or Salina Burial Pit. [7] [5] It was declared a U.S. National Historic Landmark in 1964. [2] [3] In 1989, the state of Kansas purchased the site. In 1990, the pit was filled with sand and covered with a concrete cap to protect it, then covered with dirt and grass.
This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Comanche County, Oklahoma, United States. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be seen in a map.
The Cretaceous in Kansas was an open ocean or sea environment dominated by microscopic marine plants and animals that floated or swam near the surface of this ancient water body. [2] As these microscopic creatures died, they sank to the bottom, formed a soft, limy ooze, and would preserve any larger creatures that died and sank into it.