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Scientists Push Back the Clock on Early Human Finds
Popular Archaeology ^ | December 01, 2013 | unattributed

Posted on 12/03/2013 7:08:24 PM PST by SunkenCiv

New dating indicates... a well-known group of early Homo (early human) fossils discovered in previous investigations at Koobi Fora in the Turkana Basin of East Africa have an age range that is older than previously estimated.

Led by archaeologist Josephine C.A. Joordens of the Netherlands' Leiden University, the researchers combined magnetostratigraphy and strontium (Sr) isotope stratigraphy techniques to develop a new age constraint range for 15 selected hominin fossils found in deposits on the Karari Ridge of the Koobi Fora region in the eastern Turkana Basin (Kenya). Magnetostratigraphy measures the polarity of Earth's changing magnetic field at the time a stratum (layer) was deposited. Strontium isotope stratigraphy involves measuring the ratios of Strontium isotopes in sediments to determine relative ages between successively deposited sediments. The fossils included key specimens such as cranium KNM-ER 1470, partial face KNM-ER 62000 and mandibles KNM-ER 1482, KNM-ER 1801, and KNM-ER 1802, all well-known among scientists and scholars involved in human evolution research. The fossil KNM-ER 1470, for example, has been classified as belonging to the early human species Homo rudolfensis, discovered by Bernard Ngeneo in 1972 and considered a possible theoretical contender for being ancestral to the human line. It has been dated to about 1.9 million years BPE.

Now, however, the results of their tests and analyses show a new age-range constraint of between 1.945 ± 0.004 and 2.058 ± 0.034 Ma, making the fossil finds older than previously estimated, and providing a sharper, more specific age range for their deposit.

(Excerpt) Read more at popular-archaeology.com ...


TOPICS: History; Science; Travel
KEYWORDS: africa; godsgravesglyphs; turkanaboy
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Homo rudolfensis skull (KNM ER 1470) reconstruction displayed at Museum of Man, San Diego. Durova, Wikimedia Commons

Homo rudolfensis skull (KNM ER 1470) reconstruction displayed at Museum of Man, San Diego. Durova, Wikimedia Commons

1 posted on 12/03/2013 7:08:24 PM PST by SunkenCiv
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To: StayAt HomeMother; Ernest_at_the_Beach; decimon; 1010RD; 21twelve; 24Karet; 2ndDivisionVet; ...

2 posted on 12/03/2013 7:08:52 PM PST by SunkenCiv (http://www.freerepublic.com/~mestamachine/)
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To: SunkenCiv
BPE

I propose BGF...

Before Government Funding...

3 posted on 12/03/2013 7:15:40 PM PST by bigheadfred
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To: SunkenCiv

I remember this guy! We were at a Rolling Stones concert in Milwaukee.


4 posted on 12/03/2013 7:18:00 PM PST by blueunicorn6 ("A crack shot and a good dancer")
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To: SunkenCiv

Bogus report. World was created only 4000 years ago!


5 posted on 12/03/2013 7:19:22 PM PST by entropy12 (Zero thanks to all who stayed home and helped elect Acorn lawyer Zero.)
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To: SunkenCiv

I believe they voted for Obama, too.


6 posted on 12/03/2013 7:20:35 PM PST by ExCTCitizen (Ben Carson/Rand Paul or Sara/Nikki in 2016)
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To: SunkenCiv

not homo sapien

MAY be related to our line (that also means may not be)

But let them keep guessing one day we will all know the truth


7 posted on 12/03/2013 7:23:54 PM PST by Nifster
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To: blueunicorn6

musta been some really lousy acid


8 posted on 12/03/2013 7:40:49 PM PST by bigheadfred
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To: SunkenCiv

Interesting. Thanks for posting.


9 posted on 12/03/2013 7:43:04 PM PST by onedoug
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To: onedoug
Interesting. Thanks for posting.

I second that.

10 posted on 12/03/2013 7:46:54 PM PST by Standing Wolf (No tyrant should ever be allowed to die of natural causes.)
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To: bigheadfred

It was some of that stamp acid from the 70s. I didn’t actually have the stamps so me and this guy were licking the front top right of old envelopes. I did two days in the county pen.....for littering. Turns out “The Man” wants you to put those soggy envelopes in a garbage can instead of throwing them on the ground. It was police brutality. I got a paper cut.


11 posted on 12/03/2013 8:06:27 PM PST by blueunicorn6 ("A crack shot and a good dancer")
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To: blueunicorn6

i can only assume you still have both kidneys


12 posted on 12/03/2013 8:34:45 PM PST by bigheadfred
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To: SunkenCiv

Homo rudolfensis Did he have a very shiny nose?
It looks like someone broke a club over it.


13 posted on 12/03/2013 8:48:42 PM PST by tumblindice (America's founding fathers: All armed conservatives.)
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To: SunkenCiv

I’m no forensic paleopathologist, or whatever, but look at the breaks in the facial bones and skull.
Since it’s not likely a gunshot wound, doesn’t it look like this poor schlub got poleaxed right across his noggin?
Alabama fan?


14 posted on 12/03/2013 9:28:26 PM PST by tumblindice (America's founding fathers: All armed conservatives.)
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To: SunkenCiv

I’m anxiously awaiting the discovery of a two million year old pacemaker.


15 posted on 12/03/2013 10:11:32 PM PST by clearcarbon
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To: bigheadfred

Nope. I lost one in a poker game in Schenectady. You’d think that three queens would be a winning hand, but the dealer had four queens.


16 posted on 12/04/2013 8:10:32 AM PST by blueunicorn6 ("A crack shot and a good dancer")
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To: entropy12

No, 6016 years ago.


17 posted on 12/04/2013 9:31:56 AM PST by Verginius Rufus
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To: blueunicorn6

Gimme Shelter

18 posted on 12/04/2013 11:58:40 AM PST by blam
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To: tumblindice

I’ve been tempted to poleaxe some Alabama fans, but I simmered down and left for a restaurant without a jukebox. ;’)

The deformations are probably just due to burial.


19 posted on 12/04/2013 7:51:54 PM PST by SunkenCiv (http://www.freerepublic.com/~mestamachine/)
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To: clearcarbon

“In a few minutes there will be no doll. There can’t be. I’m sorry.”


20 posted on 12/04/2013 7:52:26 PM PST by SunkenCiv (http://www.freerepublic.com/~mestamachine/)
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