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The White River Formation is found in the Northeastern corner of the Colorado, and was deposited between ~37.2 and ~30.8 Ma, encompassing parts of the late Eocene and early Oligocene. The formation is composed primarily of claystones , mudstones , and siltstones , within which a variety of fossil organisms, collectively referred to as the White ...
Paleo-Indian period – the first people who entered, and subsequently inhabited, the Americas during the final glacial episodes of the late Pleistocene period.Evidence suggests big-game hunters crossed the Bering Strait from Asia into North America over a land and ice bridge (), that existed between 45,000 BCE – 12,000 BCE, [1] following herds of large herbivores far into Alaska.
This list of the prehistoric life of Colorado contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of ...
This list of the Paleozoic life of Colorado contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Colorado and are between 538.8 and 252.17 million years of age.
This list of prehistoric sites in the U.S. State of Colorado includes historical and archaeological sites of humans from their earliest times in Colorado to just before the Colorado historic period, which ranges from about 12,000 BC to AD 19th century. The Period is defined by the culture enjoyed at the time, from the earliest hunter-gatherers ...
Cowboy Wash is a group of nine archaeological sites used by Ancestral Puebloans (previously known as Anasazi) in Montezuma County, southwestern Colorado, United States.Each site includes one to three pit houses, and was discovered in 1993 during an archaeological dig.
A Wichita village surrounded by fields of maize and other crops. Gathering wild plants, such as the prairie turnip (Pediomelum esculentum, syn. Psoralea esculenta) and chokecherry (Prunus virginiana) for food was undoubtedly a practice of Indian societies on the Great Plains since their earliest habitation 13,000 or more years ago. [3]
Yuma points were also found on the site, were likely from a period a little later than the Folsom artifacts. Unfluted points were found on the Lindenmeier site from the Archaic and Late pre-historic periods and evidence of a late prehistoric kill site. The limited number of artifacts from this and other post-Folsom periods seem to indicate that ...