Evolution of Man's erect posture
Dudley Morton 1926 J.Morphol.
...man's erectly supported body posture could only have originated from a vertically suspended posture (arboreal).
The fact that the prehuman stem passed through an earlier arboreal & brachiating period is attested to by
-the grasping character of his hands,
-the ratio of arm/body length,
-the extreme mobility of the shoulder-joints,
-the extension of his legs on the body.
The semi-erect posture of the great apes is not an advance towards human bipedism, but a modern reversion toward quadrupedism. ...
___

IOW, early 20th-cent.PAs were smarter than late-20th-cent.PAs.

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On Fri, 17 Mar 2023 16:21:45 -0700 (PDT), "littor...@gmail.com" <littoral.homo@gmail.com> wrote:

Evolution of Man's erect posture
Dudley Morton 1926 J.Morphol.
...man's erectly supported body posture could only have originated from a vertically suspended posture (arboreal).
The fact that the prehuman stem passed through an earlier arboreal & brachiating period is attested to by
-the grasping character of his hands,
-the ratio of arm/body length,
-the extreme mobility of the shoulder-joints,
-the extension of his legs on the body.
The semi-erect posture of the great apes is not an advance towards human bipedism, but a modern reversion toward quadrupedism. ...
___

IOW, early 20th-cent.PAs were smarter than late-20th-cent.PAs.

Dudley J. Morton (1884–1960) was a orthopedic surgeon and anatomist,
not a PA:
https://doi.org/10.1002/9781118584538.ieba0329

The idea that humans evolved from a orthograde suspensory ape was
already proposed three years earlier by Arthur Keith in his Hunterian
Lectures of 1923:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2316087/

Early in the 20th century they didn't have the fossil data that we
have in the 21st century.
https://www.pnas.org/doi/10.1073/pnas.1403659111

"In summary, Ar. ramidus shared with African apes and humans a trunk
and appendicular skeleton more evolved than those of pronograde
arboreal quadrupeds, but was not as adapted to orthograde vertical
climbing or suspension as are extant great apes. Ar. ramidus was
neither adapted for quadrupedal running and leaping typical of smaller pronograde monkeys, nor for the acrobatic gymnastics of quadrumanous
and suspensory-oriented chimpanzees. On the ground, the lack of
chimpanzee-like lumbar and pelvic specializations allowed Ardipithecus
to move with much more effective bipedality than any living ape. In
short, Ar. ramidus combined versatile but deliberate climbing
involving body postures spanning both "pronogrady" and "orthogrady,"
with a previously unknown form of bipedality."

That early 20th century PAs were smarter than late 20th century PAs
could only be suggested by a silly 21st century AAT proponent.

--- SoupGate-Win32 v1.05
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Evolution of Man's erect posture
Dudley Morton 1926 J.Morphol.
...man's erectly supported body posture could only have originated from a vertically suspended posture (arboreal).
The fact that the prehuman stem passed through an earlier arboreal & brachiating period is attested to by
-the grasping character of his hands,
-the ratio of arm/body length,
-the extreme mobility of the shoulder-joints,
-the extension of his legs on the body.
The semi-erect posture of the great apes is not an advance towards human bipedism, but a modern reversion toward quadrupedism. ...
___

IOW, early 20th-cent.PAs were smarter than late-20th-cent.PAs.

kudu runner:

Dudley J. Morton (1884–1960) was a orthopedic surgeon and anatomist,
not a PA:

:-DDD
Is this an argument??

Already caught your kudu?

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On Sat, 18 Mar 2023 07:04:22 -0700 (PDT), "littor...@gmail.com" <littoral.homo@gmail.com> wrote:

Evolution of Man's erect posture
Dudley Morton 1926 J.Morphol.
...man's erectly supported body posture could only have originated from a vertically suspended posture (arboreal).
The fact that the prehuman stem passed through an earlier arboreal & brachiating period is attested to by
-the grasping character of his hands,
-the ratio of arm/body length,
-the extreme mobility of the shoulder-joints,
-the extension of his legs on the body.
The semi-erect posture of the great apes is not an advance towards human bipedism, but a modern reversion toward quadrupedism. ...
___

IOW, early 20th-cent.PAs were smarter than late-20th-cent.PAs.

Dudley J. Morton (1884–1960) was a orthopedic surgeon and anatomist,
not a PA:

:-DDD
Is this an argument??

No, a correction.

Already caught your kudu?

Caught you, on misinformation/disinformation.

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Pandora wrote:

[...]

Relax. He said erect "Posture."

P-O-S-T-U-R-E

You really shouldn't have gotten *That* excited.

"...but, but, but they both begin with a P"

So doesn't "Pig." Stop being one.




-- --

https://jtem.tumblr.com/post/712098184160296960

--- SoupGate-Win32 v1.05
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littor...@gmail.com wrote:

Evolution of Man's erect posture
Dudley Morton 1926 J.Morphol.
...man's erectly supported body posture could only have originated from a vertically suspended posture (arboreal).
The fact that the prehuman stem passed through an earlier arboreal & brachiating period is attested to by
-the grasping character of his hands,
-the ratio of arm/body length,
-the extreme mobility of the shoulder-joints,
-the extension of his legs on the body.
The semi-erect posture of the great apes is not an advance towards human bipedism, but a modern reversion toward quadrupedism. ...
___

IOW, early 20th-cent.PAs were smarter than late-20th-cent.PAs.

kudu runner:

Dudley J. Morton (1884–1960) was a orthopedic surgeon and anatomist,
not a PA:

:-DDD
Is this an argument??

Already caught your kudu?

It was to you.

:=}}}}}}}

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

Op maandag 27 maart 2023 om 06:13:31 UTC+2 schreef Primum Sapienti:

"Evolution of Man's erect posture" Dudley Morton 1926 J.Morphol.
...man's erectly supported body posture could only have originated from a vertically suspended posture (arboreal) ... that the prehuman stem passed through an earlier arboreal & brachiating period is attested to by the grasping character of his

hands, the ratio of arm/body length, the extreme mobility of the shoulder-joints, the extension of his legs on the body. The semi-erect posture of the great apes is not an advance towards human bipedism, but a modern reversion toward quadrupedism. ...

___

IOW, early 20th-cent.PAs were smarter than late-20th-cent.PAs.

kudu runner:

Dudley J. Morton (1884–1960) was a orthopedic surgeon and anatomist, not a PA:

:-DDD Is this an argument?? Already caught your kudu?

It was to you. :=}}}}}}}

??


"Evolution of Man's erect posture"
Dudley Morton 1926 J.Morphol.
...man's erectly supported body posture could only have originated from a vertically suspended posture (arboreal).
The fact that the pre-human stem passed through an earlier arboreal & brachiating period is attested to by
- the grasping character of his hands,
- the ratio of arm/body length,
- the extreme mobility of the shoulder-joints,
- the extension of his legs on the body.
The semi-erect posture of the great apes is
-- not an advance towards human bipedism,
-- a modern reversion toward quadrupedism.
...

IOW, early 20th-cent.PAs were smarter than late-20th-cent.PAs:
Mio-Pliocene Hominoidea were already BP:
this confirms that
- Miocene Hominoidea were aquarboreal,
- apiths were fossil relatives of Gorilla or Pan
(Pliocene Homo was in S-Asia -> Java early-Pleist. H.erectus).

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