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Title: Fossil Reanalysis Pushes Back Origin of Homo sapiens
Source:
sciam
URL Source: http://www.sciam.com/article.cfm?ch ... DFE-C0B7-1213-80B783414B7F0000
Published: Feb 17, 2005
Author: unlisted
Post Date: 2005-02-17 05:49:36 by 2Trievers
Keywords: Reanalysis, sapiens, Fossil
Views: 2276
Comments: 185
A new analysis of human remains first discovered in 1967 suggests that they are in fact much older than previously believed. The results, published today in the journal Nature, push back the emergence of our species by nearly 35,000 years. Ian McDougall of the Australian National University in Canberra and his colleagues worked with two well-known fossil finds known as Omo I and Omo II, which were recovered from Ethiopia's Kibish Formation by Richard Leakey. The remains include two partial skulls as well as arm, leg, foot and pelvis bones for Omo I. "Anthropologists said they looked very different in their evolutionary status," remarks study co-author Frank Brown of the University of Utah. "Omo I appeared to be essentially modern Homo sapiens and Omo II appeared to be more primitive." At the time, the bones were dated to 130,000 years ago, based on radioactive decay of uranium and thorium from oyster shells found nearby. This time the scientists returned to the southern Ethiopian site and identified the resting places of both individuals. They also unearthed another part of a femur bone for Omo I that fits together with the original remains. The researchers then analyzed the volcanic ash layers above and below the river sediment that contained the fossils using argon dating. They determined that the rock just below the fossils dated to 196,000 years ago. Because the layers of the Kibish Formation formed quickly during wet seasons that inundated the area with organic matter, the team posits that the bones are only slightly younger than this underlying layer. In addition, a layer of ash more than 150 feet above the burial sites dates to 104,000 years old, putting a limit on their age. Using other evidence, which drained from the Nile and the Omo rivers onto the Mediterranean seafloor, the researchers attest that the Omo fossils are most likely no younger than 190,000 years old. Previously the oldest known traces of our species were fossils from Herto, Ethiopia, that date to about 160,000 years ago. The older age of the Omo remains is concordant with dates suggested by genetic studies for the origin of our species, says study co-author John Fleagle of Stony Brook University. He adds that "as modern human anatomy is documented at earlier and earlier sites, it becomes evident that there was a great time gap between the appearance of the modern skeleton and 'modern' behavior."
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#146. To: Aric2000 (#140)
“How do you explain the fact that if men couldn’t talk and write there would be no such thing as sin and the Bible?”
Ah okay.. I misunderstood your meaning.. And I totally agree that evil is not the lack of goodness alone and that evil exists and not the lack of goodness.. athough I do believe that there is an entity that exists that shouldn't be depicted as the opposite of God.. which would put it/him on the same level as God..the antithesis..but it/he would eptomize evil.. but mankind has the choice to do evil which unfortunately is man is 'bent'..
Hmmmmm ... when you find out how to become a "perputal student" and keep a roof over your head ... let me know.
Question your premise. Religion and transgression precede literacy, I'm afraid.
You guys STILL at it???? I'm impressed!
Worked every day through UG and grad school, except for my very last semester. Didn't have time or dough to be a perpetual student though. Wish I had. I'd have done a PhD. I rub academic folks thw wrong way somehow.
I don't know about perpetual student, but I do know some people who have made an art form out of being perpetual pains in the arse. hmmmmm.... I wonder if there's $$$$ in it??? =0)
Where's your sense of humor, jumior?
Now that is one thing I can say from first hand knowledge.. is that her sense of humor will run rings around most..
I like it, I like it a lot, and actually belief in an afterlife came before written language, so religion may be what started it off. Who knows, without religion, we might still be hunting and gathering in the plains of Africa....
Hey! I resemble that remark!!! I ain't THAT junior, you oldster you! And besides, i wasn't referring to you as a pain in the arse - I was referring to other persons I know. i.e. - making a bullshit comment Don't take things personally - had I meant to say something mean about you, I would have pinged you or called you a name outright. so chill! =0) no harm, no foul!
10-4, capps. You are a gentleman.
And a decent looking chick too.
Taking my name in vain again?
Not me, I gave up on religion and watched King Harold get dismembered at the battle of Hastings (not shot thru the eye with an arrow as the Bayeux tapestry said). Sword thru the chest/heart, then decapitation, then disemboweled, finally, legs cut off below the knee. Even then it was less bloody than most religious discussions.
*looks for missing genetalia*
weeelllll...................... no. =0) just certain people I know (including myself) who have turned being anass pain into high art. And I am only "DECENT" looking? YOU SUCK!!!
You know how to improve yer rating. ;)
My goodness! My bad today. You are of course a most worthy poster of the more esteemed gender.
Get a boob job???
Does that mean I can quit looking for missing appendages now????
Yes, I am quite certain that you have all the appurtenances the God meant you to have. Cheers.
Why thank you, I hopefully resemble that remark....LOL
You sir, would then be in the same company as me - Do you REALLY want that??? ;0)
Cheers. good! 'cuz i kept looking and looking and looking and looking.......
LOL.
Hell no! Send me money ;) www.usmasters.com (I want the EP-52 w/ a maple neck). If I want ta-tas I'll go get the hotwings at Hooters, but a 5 string bass w/ a good solid "B" string is pretty rare.
Thanks mom ... we seem to be getting along just fine.
And I just happen to have an award you can use ...
I have earned 3 already....
Just today? Maybe tomorrow will be better ...........
Those are only the ones people have TOLD me about. Only God knows how many i actually earned!
It's difficult to play by their rules.
And what would be wrong with that? I'd consider it a step forward the way civilzation is going now.
Keep going Cappy ... I understand the Stanley Cup isn't being used this year ... maybe there's a BIG BIG trophy in it for you! LOL
No high speed internet access...
What is the sound of of one lip disk clapping? SAY! You'd probably get real good on the drums ....
Maybe, but the bone in the nose thing is out. Not even for a gig.
Chicken?
Feel better?
As some have said, respect someone who is searching for the truth, doubt those that claim they have found it.
#147. To: randge (#145)
By saying "evil is an entity" I didn't mean that it was a being like Satan.
#148. To: randge (#144)
#149. To: 2Trievers (#146)
#150. To: 2Trievers (#148)
#151. To: 2Trievers (#148)
#152. To: 2Trievers (#148)
when you find out how to become a "perputal student" and keep a roof over your head ... let me know.
#153. To: CAPPSMADNESS (#152)
#154. To: randge (#153)
Where's your sense of humor, jumior?
#155. To: 2Trievers (#146)
#156. To: randge (#153)
Where's your sense of humor, jumior?
#157. To: CAPPSMADNESS (#156)
#158. To: randge, CAPPSMADNESS (#157)
#159. To: CAPPSMADNESS (#156)
I was referring to other persons I know.
#160. To: CAPPSMADNESS (#150)
#161. To: randge (#157)
You are a gentleman.
#162. To: Samuel Gray (#159)
Taking my name in vain again?
#163. To: CAPPSMADNESS (#162)
And I am only "DECENT" looking?
#164. To: CAPPSMADNESS (#161)
#165. To: Samuel Gray (#163)
#166. To: randge (#164)
You are of course a most worthy poster of the more esteemed gender.
#167. To: CAPPSMADNESS (#166)
#168. To: CAPPSMADNESS (#162)
just certain people I know (including myself) who have turned being anass pain into high art.
#169. To: Aric2000 (#168)
Why thank you, I hopefully resemble that remark....LOL
#170. To: randge (#167)
Yes, I am quite certain that you have all the appurtenances the God meant you to have.
#171. To: CAPPSMADNESS (#170)
#172. To: CAPPSMADNESS (#165)
Get a boob job???
#173. To: CAPPSMADNESS (#150)
#174. To: CAPPSMADNESS (#152)
#175. To: 2Trievers (#174)
#176. To: CAPPSMADNESS (#175)
#177. To: 2Trievers (#176)
Just today? Maybe tomorrow will be better ...........
#178. To: randge (#151)
Didn't have time or dough to be a perpetual student though. Wish I had. I'd have done a PhD. I rub academic folks thw wrong way somehow.
#179. To: Aric2000 (#155)
........we might still be hunting and gathering in the plains of Africa....
#180. To: CAPPSMADNESS (#177)
#181. To: 2Trievers (#179)
#182. To: Samuel Gray (#181)
#183. To: 2Trievers (#182)
real good on the drums ....
#184. To: Samuel Gray (#183)
#185. To: Samuel Gray (#183)
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