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Recent Radiocarbon Data for
Western Clovis and High
Plains Paleo |
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Kenneth Tankersley, Ph. D. |
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Western Clovis
Technological
Complex |
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10,800 to 11,400,
radiocarbon age
range |
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12,500 to 13,500,
actual time, years
ago |
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Folsom Technological
Complex |
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10,000 to 10,900,
radiocarbon age
range |
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11,160 to 12,900,
actual time, years
ago |
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The
Scottsbluff technological
complex includes Alberta,
Scottsbluff, Firstview, and
Eden points, and the Cody
Knife. Some people, however,
have a "Cody Complex," and
"Alberta Complex'" and even
an "Alberta Cody Complex."
Basically, it is all the
same technology. |
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Scottsbluff
Technological
Complex |
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8,450 to 9,450,
radiocarbon age
range |
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9,500 to 10,500,
actual time, years
ago |
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For those who use
the term "Cody
Technological
Complex" |
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8,100 to 9,300,
radiocarbon age
range |
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8,800 to 10,500,
actual time, years
ago |
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For those who use
the term "Alberta
Technological
Complex" |
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9,900 to 10,100
radiocarbon age
range |
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11,100 to 11,200,
actual time, years
ago |
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For those who use
the term "Alberta-Cody Technological
Complex" |
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9,800 to 10,100
radiocarbon age
range |
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11,000 to 11,200,
actual time, years
ago |
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For those who use
the term "Firstview
Projectile Point" |
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8,450 to 9,450
radiocarbon age
range |
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9,500 to 10,500,
actual time, years
ago |
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Midland is
a major can of worms. Some people
have it in a single technological
complex while others put it into the
Lanceolate Plano Technological
Complex. In this complex, Plainview
is tossed in with the Midland, Agate
Basin, Hell Cap, Milnes and,
Firstview, and Black Rock Concaved
Base. |
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Also,
there is the issue that they date
much older in the north than they do
in the south. In Texas, they call
Goshen Plainview. For some time in
Wyoming, they called Goshen Goshen
Plainview. Now it is just Goshen in
Wyoming
and Plainview in Texas. |
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Midland Projectile
Point |
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10,350 to 10,750
radiocarbon age
range |
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12,350 to 12,500,
actual time, years
ago |
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Agate Basin
Projectile Point |
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9,500 to 10,500
radiocarbon age
range |
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10,510 to 12,420,
actual time, years
ago |
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Hell Gap Projectile
Point |
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9,600 to 10,000
radiocarbon age
range |
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10,500 to 11,160,
actual time, years
ago |
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Goshen Projectile
Point |
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10,350 to 11,000
radiocarbon age
range |
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12,350 to 12,920,
actual time, years
ago |
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Plainview Projectile
Point |
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6,280 to 10,290
radiocarbon age
range |
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7,000 to 12,300,
actual time, years
ago |
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Milnesand Projectile
Point |
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9,300 to 10,290
radiocarbon age
range |
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10,500 to 11,300,
actual time, years
ago |
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Black Rock Concave
Base Projectile
Point |
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7,000 to 9,000
radiocarbon age
range |
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7,790 to 9,980,
actual time, years
ago |
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Rio Grande Projectile
Point |
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9,600 to 10,000
radiocarbon age
range |
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10,500 to 11,160,
actual time, years
ago |
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The
term "Yuma." originally coined by
Renaud in 1937 was a mixture of
lanceolate shaped points, which
included a variety of manufacturing
technologies. It was originally used
to talk about non-Folsom Paleoindian.
Later, they were separated into the
Plano and Scottsbluff clusters
depending upon their method of
manufacture. I realize the term
survives in the amateur/ collector
circles, professionally, however, it
is an extinct term in 2004. |
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