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Naco, Arizona Clovis cache

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Presentation on theme: "Naco, Arizona Clovis cache"— Presentation transcript:

1 The American Gospel (in two part harmony): Clovis First and the Mackenzie corridor

2 Naco, Arizona Clovis cache

3 Clovis Point Mounted to Shaft

4 Atl atls: a Folsom tool

5 Folsom Point

6 The American Gospel (new testament): 3 Waves of Migration
Supported by: Archaeological Evidence (e.g. Clovis & Folsom) Linguistic evidence (Greenberg and Nichols) Genetic evidence (Cavalli-Sforza) Biological evidence (Turner and others) Geological evidence Mackenzie Corridor (aka ice-free corridor) Known existence of Beringia in late Pleistocene

7 Linguistic Evidence: Nichols and Greenberg
Dates BP Linguistic & Genetic Evidence 32,000 ancestors of Amerindian speakers (now distributed over nearly all of the Americas) 11, ,000 ancestors of Na-Diné speakers (distributed over the northern half of North America) 6, ,400 ancestors of Eskimo-Aleut speakers (distributed in the northernmost part of North America)

8 Genetic Evidence: Cavalli-Sforza et al.
mtDNA analysis shows only four major groups of mtDNA in Native Americans These patterns are only found in America and Asia Distribution of the traits shows a likely model of 3 “waves” of migration First (Amerindian) ,000 BP Second (Amerindian) 12-15,000 BP Third (Na-Diné) 7-9,000 BP

9 Dental Evidence: Turner

10 Shoveled Incisors

11 Geological Evidence: Accessibility of Possible Routes
Dates BC Beringia "Land Bridge" Coastal Route Mackenzie Corridor 38,000-34,000 accessible (open) open closed 34,000-30,000 submerged (closed) 30,000-22,000 22,000-15,000 15,000 BC - today

12 Hypothesis: Constant Native Presence
Supported by some oral histories Refuted by: Lack of evidence for infinite human occupation Disparity of agreement in native myths Scientific findings of people who just don’t look “Indian” e.g. the 9000 year old Kennewick Man in 1996

13 Hypothesis: European Origins
Supported by Stanford’s “Solutrean Solution” Fluted points and toolkits are nearly identical Red ochre use Caching of large bifaces and other stock Brown et al. report mtDNA similarities Refuted by: No boats No direct archaeological ties 4500 year time gap between Clovis and Solutrean

14 Hypothesis:Pacific Crossing
Supported by: Age estimates at Monte Verde, Chile and other sites (12,000 to 30,000 BP) Morphology of ancient remains like Luzia Morphology of modern Tierra del Fuegans Refuted by: Lack of evidence for boats Could also be explained by an overland journey

15 Hypothesis: Pacific Coastal Route
Supported by: Daryl Fedje’s work off Queen Charlotte Recent evidence suggesting no ice-free corridor between 21,000 and 11,500 BP Consistent with much of “Clovis First”, but accounts for earlier dates now accepted Refuted by: Difficulty of underwater excavation to build more solid case

16 Native American Origins: What are the Possibilities?


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