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Author Topic:   Does evidence of transitional forms exist ? (Hominid and other)
nator
Member (Idle past 2196 days)
Posts: 12961
From: Ann Arbor
Joined: 12-09-2001


Message 287 of 301 (334596)
07-23-2006 6:57 PM
Reply to: Message 286 by pop
07-23-2006 6:54 PM


Re: what do you say about australopithecus
Ah, OK, so you are arguing against the Creationist claim.
Did not understand that to be the case before.
I am not a Creationist, so I do not disagree that A. is an ancestor of Homo sapiens sapiens

This message is a reply to:
 Message 286 by pop, posted 07-23-2006 6:54 PM pop has replied

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pop 
Inactive Member


Message 288 of 301 (334626)
07-23-2006 8:04 PM
Reply to: Message 286 by pop
07-23-2006 6:54 PM


Re: what do you say about australopithecus
I am an athesist just like you.but I think I am going to be a muslim.muslims are not terrorists as I thought they have moral teachings and they are kind people what is your opinion.
pop, we try to stay on topic around here and this post has NOTHING to do with the thread.
Edited by AdminJar, : No reason given.

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pop 
Inactive Member


Message 289 of 301 (334641)
07-23-2006 8:56 PM
Reply to: Message 287 by nator
07-23-2006 6:57 PM


transitional forms
But I read that many transitional forms became myths as
.coelacanth in fish evolution.
.archaeoraptor/archeopteryx in bird evolution.
.pakicetus/ambulocetus in whale evolution
.the land reptile euparkerio.
.the lower permian reptile arraescelis.

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 Message 287 by nator, posted 07-23-2006 6:57 PM nator has replied

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nator
Member (Idle past 2196 days)
Posts: 12961
From: Ann Arbor
Joined: 12-09-2001


Message 290 of 301 (334759)
07-24-2006 7:03 AM
Reply to: Message 289 by pop
07-23-2006 8:56 PM


Re: transitional forms
quote:
But I read that many transitional forms became myths as
.coelacanth in fish evolution.
.archaeoraptor/archeopteryx in bird evolution.
.pakicetus/ambulocetus in whale evolution
.the land reptile euparkerio.
.the lower permian reptile arraescelis.
But I read that many transitional forms became myths as
.coelacanth in fish evolution.
.archaeoraptor/archeopteryx in bird evolution.
.pakicetus/ambulocetus in whale evolution
.the land reptile euparkerio.
.the lower permian reptile arraescelis.
As far as I know these are all still considered transitional forms in Biology.

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 Message 289 by pop, posted 07-23-2006 8:56 PM pop has replied

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pop 
Inactive Member


Message 291 of 301 (335372)
07-26-2006 5:45 AM
Reply to: Message 290 by nator
07-24-2006 7:03 AM


Re: transitional forms
Well do you want me to start explaining why the basic transitional forms turned out to be not such thing.

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 Message 292 by PaulK, posted 07-26-2006 5:53 AM pop has replied

PaulK
Member
Posts: 17827
Joined: 01-10-2003
Member Rating: 2.3


Message 292 of 301 (335373)
07-26-2006 5:53 AM
Reply to: Message 291 by pop
07-26-2006 5:45 AM


Re: transitional forms
Bearing in mind that "transitional forms" do not have to be direct ancestors, can you explain why archaeopteryx is not considered a valid transitional form ?
And please show that this is the consensus of the scientific community rather than the opinions of creationists (who refuse to accept that there are transitional forms).

This message is a reply to:
 Message 291 by pop, posted 07-26-2006 5:45 AM pop has replied

Replies to this message:
 Message 293 by pop, posted 07-26-2006 7:33 AM PaulK has replied

pop 
Inactive Member


Message 293 of 301 (335390)
07-26-2006 7:33 AM
Reply to: Message 292 by PaulK
07-26-2006 5:53 AM


Re: transitional forms
There was an idea tha archaeopteryx can not fly properly because all the discovered fossils of this specimen the sternum was missing in these dicoveries but what was a surprise is the seventh fossil of the Archaeopteryx which was dicovered in 1992 had a sternum (rectangular)one so the old argument around archaeopteryx was totaly invalidated by this discovery.The journal Nature described the dicovery as follows
( the recently discovered seventh specimen of the archaeopteryx preserves a partial rectangular sternum long suspected but never previously documented.this attests to its strong flight muscles.)Nature vol.382 august 1/1996 p.401.
This discovery invalidated that archaeopteryx couldnot fly perfectly.
the structure of the archaeopteryx feathers (asymmetcric)is also an evidence that archaeopteryx was a normal warm blooded bird which could fly.The point of the warm blooded bird is contrary to the dinosaurs which are cold blooded.
An old idea on the archaeopteryx teeth said that it was related to reptiles .
Any way after checking the fossil record some birds during the archaeopteryx time and after it had teeth these are categorised with (birds with teeth) .
The point here is that the archaeopteryx and other birds teeh are totally different from therepod dinosaurs .
THe three ornithologists L.D Martin /J.D Stewart/ K.N Whetstone observed that the archaeopteryx teeth and other similar birds have constricted bases and expanded roots while the theropod dinosaurs haveserrated teeth with strait roots .
IN the archaeopteryx there are claws in its wings there are living species now have claws as TOURACO/HOATZIN.
HEY IF YOU THOUGHT THAT I AM A CREATIONIST THEN YOU ARE WRONG BUT SOME TRANSITIONAL FORMS WERE TURNED TO BE NOT SUCH THINGS SO WE NEED TO RETHINK OF SOME OF TRANSITIONAL FORMS NOW.

This message is a reply to:
 Message 292 by PaulK, posted 07-26-2006 5:53 AM PaulK has replied

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 Message 294 by PaulK, posted 07-26-2006 7:41 AM pop has not replied
 Message 295 by Wounded King, posted 07-26-2006 9:02 AM pop has replied
 Message 296 by mark24, posted 07-26-2006 9:19 AM pop has not replied

PaulK
Member
Posts: 17827
Joined: 01-10-2003
Member Rating: 2.3


Message 294 of 301 (335391)
07-26-2006 7:41 AM
Reply to: Message 293 by pop
07-26-2006 7:33 AM


Re: transitional forms
None of your points indicate that archaeopteryx is not a transitional. Nor that the scientific consensus agrees with your view.
quote:
HEY IF YOU THOUGHT THAT I AM A CREATIONIST THEN YOU ARE WRONG BUT SOME TRANSITIONAL FORMS WERE TURNED TO BE NOT SUCH THINGS SO WE NEED TO RETHINK OF SOME OF TRANSITIONAL FORMS NOW
I think that your rejection of genuine transitioanl fossils speaks for itself.
{Added in edit}
I beleive that this is your source:
http://www.darwinismrefuted.com/20questions07.html
It makes the same points in the same order.
It is a Moslem Creationist site
Edited by PaulK, : New information.

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Wounded King
Member
Posts: 4149
From: Cincinnati, Ohio, USA
Joined: 04-09-2003


Message 295 of 301 (335407)
07-26-2006 9:02 AM
Reply to: Message 293 by pop
07-26-2006 7:33 AM


Re: transitional forms
Interestingly what Martin, et al. specifically say is
Martin, et al., 1980 writes:
In the dentition, Archaeopteryx has unserrated teeth with constricted
bases and expanded roots like those of other Mesozoic birds. This latter, derived
feature is also shared by most fossil and recent crocodilians. The dental structure
provides additional support for Walker's (1972) hypothesis of a "sister group" rela-
tionship between birds and crocodiles, with both groups sharing a common pseu-
dosuchian origin.
From THE ORIGIN OF BIRDS: STRUCTURE OF THE TARSUS AND TEETH.
So while the teeth may not resemble theropod teeth they do resemble the dentition of other extant reptiles, the fact that the avian dentition is derived hardly refutes the other theropod like features of Archaeopteryx. So is your objection specifically to grouping Archaeopteryx with theropods?
TTFN,
WK

This message is a reply to:
 Message 293 by pop, posted 07-26-2006 7:33 AM pop has replied

Replies to this message:
 Message 297 by pop, posted 07-26-2006 10:12 AM Wounded King has replied

mark24
Member (Idle past 5221 days)
Posts: 3857
From: UK
Joined: 12-01-2001


Message 296 of 301 (335409)
07-26-2006 9:19 AM
Reply to: Message 293 by pop
07-26-2006 7:33 AM


Re: transitional forms
pop,
Perhaps if you define "transitional fossil" as expected by the ToE, you'll see your problem.
Mark

There are 10 kinds of people in this world; those that understand binary, & those that don't

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 Message 293 by pop, posted 07-26-2006 7:33 AM pop has not replied

pop 
Inactive Member


Message 297 of 301 (335419)
07-26-2006 10:12 AM
Reply to: Message 295 by Wounded King
07-26-2006 9:02 AM


Re: transitional forms
oh yes I am rejecting that it has relation ship of therpods.But during the archaeopteryx time or before there were no reptiles having this teeth structure.
Any way in the same time of the archaeopteryx there was living a bird called confuciusornis it has no teeth at all and modern birds anatomy.

This message is a reply to:
 Message 295 by Wounded King, posted 07-26-2006 9:02 AM Wounded King has replied

Replies to this message:
 Message 298 by Wounded King, posted 07-26-2006 10:44 AM pop has replied

Wounded King
Member
Posts: 4149
From: Cincinnati, Ohio, USA
Joined: 04-09-2003


Message 298 of 301 (335424)
07-26-2006 10:44 AM
Reply to: Message 297 by pop
07-26-2006 10:12 AM


Re: transitional forms
There were no crocodiles with crocodilian teeth when archeopteryx was extant? Seriously? Care to provide any evidence of that quite substantial claim?
Be that as it may though the fact that a bird like transitional has feature like a bird and not like a reptile does not make it less transitional if it still has distinctly reptilian features.
The fact that avians have a derived form of dentition distinct from the theropods just means that dentition is not one of the reptilian features archaeopteryx displays.
Any way in the same time of the archaeopteryx there was living a bird called confuciusornis it has no teeth at all and modern birds anatomy.
This is totally irrelevant unless you are using a twisted concept of transitionals, which seems to be looking like the case. No one is claiming that all moderns birds are descended from archaeopteryx so why should a contemporaneous bird with modern anatomy be considered detrimental to Archaeopteryx's position as a transitional?
TTFN,
WK

This message is a reply to:
 Message 297 by pop, posted 07-26-2006 10:12 AM pop has replied

Replies to this message:
 Message 299 by pop, posted 07-26-2006 11:25 AM Wounded King has replied

pop 
Inactive Member


Message 299 of 301 (335443)
07-26-2006 11:25 AM
Reply to: Message 298 by Wounded King
07-26-2006 10:44 AM


Re: transitional forms
confuciusornis is acreature with the following features
.the same age as archaeopteryx.
.its beak and feathers share the same features as modern birds.
.the pygostle.
SO THE IDEA OF THE IDEA THAT THE ARCHAEOPTERYX IS THEPRIMITIVE ANCESTOR OF BIRDS IS WRONG.

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 Message 298 by Wounded King, posted 07-26-2006 10:44 AM Wounded King has replied

Replies to this message:
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Wounded King
Member
Posts: 4149
From: Cincinnati, Ohio, USA
Joined: 04-09-2003


Message 300 of 301 (335445)
07-26-2006 11:44 AM
Reply to: Message 299 by pop
07-26-2006 11:25 AM


Re: transitional forms
SO THE IDEA OF THE IDEA THAT THE ARCHAEOPTERYX IS THEPRIMITIVE ANCESTOR OF BIRDS IS WRONG.
Just as well that idea has no relevance to its status as a transitional fossil then.
TTFN,
WK

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AdminModulous
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Posts: 897
Joined: 03-02-2006


Message 301 of 301 (335447)
07-26-2006 11:53 AM


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