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Author Topic:   Orrorin tugenensis Femur - Additional Info on Transitional Fossil
Bill Birkeland
Member (Idle past 2552 days)
Posts: 165
From: Louisiana
Joined: 01-30-2003


Message 1 of 11 (139310)
09-02-2004 9:40 PM


Chimp-sized hominid walked upright on two legs
six million years ago. by Barbara Hale State
University, Public release date: 2-Sep-2004
Chimp-sized hominid walked upright on two leg | EurekAlert!
"Recent fossil evidence suggests that a hominid, the size
of a chimp, walked upright on two legs in Kenya's Tugen
Hills, over 6 million years ago --- about 3 million years
earlier than "Lucy," the most famous early biped in
lineage."
The paper is:
Galik, K., Senut, B., Pickford, M. Gommery, D., Treil,
J., Kuperavage, A. J., and Eckhardt, R. B. 2004,
External and Internal Morphology of the BAR 1002'00
Orrorin tugenensis Femur. Science. vol. 305,
no. 5689, pp. 1450-1453 (3 September 2004)
Yours,
Bill

Replies to this message:
 Message 2 by joshua221, posted 09-03-2004 12:41 AM Bill Birkeland has not replied
 Message 6 by Chiroptera, posted 09-03-2004 1:00 AM Bill Birkeland has not replied

  
joshua221 
Inactive Member


Message 2 of 11 (139410)
09-03-2004 12:41 AM
Reply to: Message 1 by Bill Birkeland
09-02-2004 9:40 PM


What about the chances of this 1 to 3 ratio to be a one and only?
What's up with Lucy?
quote:
Creationists, on the other hand, believe Lucy has been misinterpreted. They insist that Lucy was just another ape, and that her species was almost identical to the chimpanzees of today. Although they agree that Lucy may have walked upright now and then, they point out that modern chimpanzees are also capable of an occasional upright stroll. Creationists emphasize the ape-like features of Australopithecus afarensis. They feel there is little or no evidence that the species was a product of evolution.
I found this at http://www.geocities.com/thenorthtower/lucypage.html
The website owner maintains that Lucy is a matter of opinion. Rather than a straight piece of evidence.
These "hominids" look like indirect evidence, the 1 to 3 ratio looks edgy, could be argued as a type of monkey/chimp/orangatang, etc...
This message has been edited by prophex, 09-02-2004 11:50 PM

"Wake up, O sleeper, rise from the dead, and Christ will shine on you."
Ephesians 5:14

This message is a reply to:
 Message 1 by Bill Birkeland, posted 09-02-2004 9:40 PM Bill Birkeland has not replied

Replies to this message:
 Message 3 by jar, posted 09-03-2004 12:46 AM joshua221 has replied

  
jar
Member (Idle past 414 days)
Posts: 34026
From: Texas!!
Joined: 04-20-2004


Message 3 of 11 (139416)
09-03-2004 12:46 AM
Reply to: Message 2 by joshua221
09-03-2004 12:41 AM


Is "Lucy" a hoaxe?
No, in fact there are now over 20 examples of Australopithecus afarensis IIRC.

Aslan is not a Tame Lion

This message is a reply to:
 Message 2 by joshua221, posted 09-03-2004 12:41 AM joshua221 has replied

Replies to this message:
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joshua221 
Inactive Member


Message 4 of 11 (139420)
09-03-2004 12:52 AM
Reply to: Message 3 by jar
09-03-2004 12:46 AM


quote:
No, in fact there are now over 20 examples of Australopithecus afarensis IIRC.
quote:
about 300 separate individuals have been found since 1973.
Maybe more?
The evidence can be faulty though, considering modern Chimps.
This message has been edited by prophex, 09-02-2004 11:52 PM

"Wake up, O sleeper, rise from the dead, and Christ will shine on you."
Ephesians 5:14

This message is a reply to:
 Message 3 by jar, posted 09-03-2004 12:46 AM jar has not replied

  
joshua221 
Inactive Member


Message 5 of 11 (139424)
09-03-2004 12:53 AM
Reply to: Message 3 by jar
09-03-2004 12:46 AM


quote:
Is "Lucy" a hoaxe?
Retracted, sorry tried to press preview but messed up!

"Wake up, O sleeper, rise from the dead, and Christ will shine on you."
Ephesians 5:14

This message is a reply to:
 Message 3 by jar, posted 09-03-2004 12:46 AM jar has not replied

  
Chiroptera
Inactive Member


Message 6 of 11 (139428)
09-03-2004 1:00 AM
Reply to: Message 1 by Bill Birkeland
09-02-2004 9:40 PM


Thank you for the link, Bill. It is very interesting. I am at a new college, and I haven't yet gotten back into the habit of walking to the library and looking over the latest issue of Science.
I do have a question. From the article in the link:
Eckhardt says, "In present day chimps and gorillas, the thicknesses in the upper and lower parts of that bone are approximately equal. In modern humans, the bone on top is thinner than on the bottom by a ratio of one to four or more. The ratio in this fossil is one to three."
Is this really diagnostic of bipedalism?

This message is a reply to:
 Message 1 by Bill Birkeland, posted 09-02-2004 9:40 PM Bill Birkeland has not replied

Replies to this message:
 Message 9 by RAZD, posted 09-04-2004 12:29 AM Chiroptera has replied

  
Adminnemooseus
Administrator
Posts: 3974
Joined: 09-26-2002


Message 7 of 11 (139449)
09-03-2004 1:50 AM


Links and Information forum is problematical
I know I have previously bounced one of Bill topics from a debate forum to this forum, because the opening message was little or nothing more than a bare link(s) (albeit a fine link(s) I'm sure).
I'm sure that is why Bill posted this topic to this forum.
While message 1 was indeed a collection of links, it does include come commentary and/or quotes, and seems suitable and destined to be a debate topic (and debating in the L&I forum is discouraged).
I'm going to move it to the "Human Origins" forum. Maybe I'll post a "What does and does not belong in the L&I forum? topic.
Adminnemooseus

  
Adminnemooseus
Administrator
Posts: 3974
Joined: 09-26-2002


Message 8 of 11 (139452)
09-03-2004 1:51 AM


Thread moved here from the Links and Information forum.
Please see previous message, about why this topic was moved.
Adminnemooseus
This message has been edited by Adminnemooseus, 09-03-2004 12:53 AM

  
RAZD
Member (Idle past 1425 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 9 of 11 (139795)
09-04-2004 12:29 AM
Reply to: Message 6 by Chiroptera
09-03-2004 1:00 AM


a bony problem?
this is the part of the bone between the ball and the thigh
the interior of the bone reveal that the neck connecting the ball to the shaft is thinner on top than it is on the bottom
so that would indicate stress in one direction only while uniform thickness would indicate multiple directions.
that would mean bipedal prefered vs up and down positions

we are limited in our ability to understand
by our ability to understand
RebelAAmerican.Zen[Deist
{{{Buddha walks off laughing with joy}}}

This message is a reply to:
 Message 6 by Chiroptera, posted 09-03-2004 1:00 AM Chiroptera has replied

Replies to this message:
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Chiroptera
Inactive Member


Message 10 of 11 (139835)
09-04-2004 9:51 AM
Reply to: Message 9 by RAZD
09-04-2004 12:29 AM


Re: a bony problem?
Interesting, thank you RAZD.
And so, I gather, we would not expect any obligate quadraped to have this feature.
Are hominids the only species with this feature? Do other "bipeds", like birds (do kangaroos count as bipeds?) have this feature, too?

This message is a reply to:
 Message 9 by RAZD, posted 09-04-2004 12:29 AM RAZD has replied

Replies to this message:
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RAZD
Member (Idle past 1425 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 11 of 11 (139839)
09-04-2004 10:47 AM
Reply to: Message 10 by Chiroptera
09-04-2004 9:51 AM


Re: a bony problem?
this is just an assumption on my part looking at structure, don't know about other cases. Kangaroos might be interesting to look at.

This message is a reply to:
 Message 10 by Chiroptera, posted 09-04-2004 9:51 AM Chiroptera has not replied

  
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