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Subject: "Still a transitional form" This topic is locked.
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40thStreetBlack
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Mon Oct-13-03 02:07 PM

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122. "Still a transitional form"
In response to In response to 109


          

>Response: Sorry it has taken me so long to respond, but I am
>moving right now and my internete will be down for awhile.
>However, back to the subject there are certain differances
>that Archeopteryx has that dinasoures do not. And it does
>have qualities that are similar to both, but the problem is
>that their are certain charecteristics of it,that cannot be
>reptillian at all. Futhermore, simply illustrating
>similarities is not enough to overide it's differences.

Yeah, I've been pretty busy too. Anyway, yes, there are certain characteristics of Archaeopteryx that are not reptilian - there are also certain characteristics that are not avian. That is exactly why it is an excellent example of a transitional form.

>Response: First of all many people do not regard it as a
>transitonal form, because it has no transitional structure.
>Even though it does share chareteristics of both bird and
>dinasour, scales and feathers are entirely different. Here
>is a link comparing scales verses feathers in detail.

First of all, almost every paleontologist in the world regards it as a transitional form. And what do you mean "it has no transitional structure"? Besides the fact that the whole organism is a transitional structure exhibiting a mixture of reptilian and avian features, there are plenty of independent transitional structures:

"There are also some features present in Archaeopteryx which are present in primitive form in the therapods but in more advanced form in the birds. In the therapods, for instance, the hallux, or big toe, is located on the back of the foot and forms a short claw that doesn't reach the ground. In birds, this toe is greatly elongated and is used for perching. In Archaeopteryx, the hallux is reversed, but is elongated to an extent midway between the therapods and the birds. In therapods, the fingers of the front arms are long; in birds, the fingers are reduced to tiny nubbins. Archaeopteryx is midway between these conditions, In birds, the wings are supported by the furcula, or wishbone, which is composed of the two fused clavicles, and Archaeopteryx also possesses a fused furcula (though not as strong as that in modern birds). A few of the therapods had clavicles, including such birdlike species as Velociraptor. And a therapod species known as Oviraptor is believed to have possessed a fused furcula, as in birds." www.geocities.com/CapeCanaveral/Hangar/2437/archie.htm

- As I said in the last post, if it is not a transitional form, then how do you explain all of the obviously reptilian characteristics which it exibits, as well as the transitional structures listed above?

>One cannot simply say that scales of a reptile can transform
>into wings due to some sort of chemical chance.

That is not what I or anyone else said. You have avoided my whole discussion of the feathered dinosaurs and dinosaurs with filamentous feather-like structures, and the evidence that these structures are proto-feathers that evolved into true feathers. And there is no need for "some sort of chemical chance" bc as I already said, scales and feathers are both composed of keratin.

(as for feathered dinosaurs, you brought up Archaeoraptor, but the ones I was discussing are Caudipteryx and Protarchaeopteryx, which are not fakes and are dinosaurs with true feathers.)

>This is inexcapable evidence that dinasours cannot evolve
>into birds.

"inexcapable evidence"? Hardly. University of California Berkeley paleontologist Kevin Padian points to the lack of convincing evidence for the embryonic thumb structure argument: "Their embryonic argument is weak because they have no evidence of a first finger forming at all." - i.e., they have no evidence that the structure they are discussing actually corresponds to a thumb. Padian adds that their argument is based on assumptions that they admit don't apply to theropod dinosaur fingers. Thus they do not have substantial evidence on which to base their claims.

Padian also explains that the evidence for radical differences in lung structure is equally suspect: "There are no fossil lungs," he says. "Their interpretation of hard and soft tissues in these fossils is strongly contested by paleontologists." - i.e., they are inferring the structure of soft and hard tissue solely from skeletal structure, and thus it is only speculation that is not backed up by hard evidence.

As for the anatomy for developing flight, that argument is contradicted by the anatomy of Unenlagia comahuensis, a dinosaur that could flap its arms like a bird:

"The structure of the forelimb suggests that the avian mode of the forelimb folding, and the extensive forelimb elevation necesssary for powered, flapping flight, was already present in cursorial, non-flying theropod dinosaurs. Unenlagia does resemble Archaeopteryx in important details of its forelimb and hip. Foremost among these is the structure of the shoulder joint, which indicates that the animal could hold its arm directly outward, like a bird, as well as fold it against its body. This posture suggests that it could flap its arm, although Unenlagia was much too heavy to fly with such a short wing." - www.dinodata.net/Dd/Namelist/Tabu/U012.htm

As for the dating, all that shows is that those specific species of feathered dinosaurs did not directly evolve into those specific species of birds, it in no way suggests that dinosaurs could not evolve into birds. On the contrary, they provide strongly compelling evidence that birds did evolve from dinosaurs, since the dino-feathers are so structurally similar to feathers of modern birds, as the Nature article explained: "Finally, the presence of remiges, rectrices and plumulaceous feathers on non-avian theropods provides unambiguous evidence supporting the theory that birds are the direct descendants of theropod dinosaurs."

So much for your "inexcapable evidence."

Furthermore, you should know that even the people you are referencing who are making these arguments (Feduccia and Ruben, the lung guy) fully believe in evolution - they just don't think that birds evolved directly from therapod dinosaurs, but instead likely evolved from other kinds of reptiles or early dinosaurs that pre-dated therapods. Here's a quote from your boy Feduccia:

"Creationists are going to distort whatever arguments come up, and they've put me in company with luminaries like Stephen Jay Gould, so it doesn't bother me a bit. , and so it is a Rosetta stone for evolution, whether it is related to dinosaurs or not. These creationists are confusing an argument about minor details of evolution with the indisputable fact of evolution: Animals and plants have been changing."

>Response: Yes, I can. Even National Geographic recanted
>its view on Archeopteryx. Note the following.

The recant in National Geographic is about Archaeoraptor, not Archaeopteryx.

>Response: Because they all looked like horses, and even you
>called them horses, and the article called them horses. And
>I never said they were the same.

No, I referred to horse evolution in general, but both the article and I clearly stated that only the modern genus Equus contains the species that can be identified as a true "horse", Equus caballus. And you said that they seemed to you to be in the same species, which is what I was referring to.

>Response: And that is absolutely fine, God told Noah to all
>the animals of their KIND on the Ark.

LOL - yeah, great scientific evidence there.

What we want is some
>sort of transitional form, between two entirely different
>species (outside of family).

First of all, transition between species in the same family still represents macroevolution - it doesn't have to be outside of family. Secondly, you have a transitional form between two entirely different CLASSES in Archaeopteryx - reptiles and birds... that is two stages of difference beyond family. Of course you don't believe this, but that is irrelevant.

>Response: LOL, define science. Be careful how you do it,
>because science has a hard time defining itself.

Briefly, following scientific methodology. Therefore, your statement "those horses seemed to be in the same species to me, but I did not look very closely" has no scientific validity, bc "they kinda looks the same" is invalid methodology upon which to base a scientific conclusion that they are the same species.

> This
>should be good, most of what is classified as science self
>refutes itself.

LOL, most of what is classified as religion refutes itself.

>If I showed you
>>the skeletal fossils of a dog and a fox, you would make the
>>same argument - that it just looks like fossils of different
>>dogs found in different parts of the world who had gone
>>through some sort of adaptation as a result of the climate,
>>not some jump between species - and you would be wrong for
>>the same reason.
>
>Response: And what reason would that be?

Basing your conclusion on a cursory glance at outward appearance instead of deeper investigation of form, structure, etc.

>Futhermore, you
>should be able to provide a half rat,half dog or something.
>Since, that would be macro evolution.

Why do you keep bringing up this dumb shit? As I already explained, that is not necessary to prove macroevolution - the fact that *you* want such a proof is completely irrelevant.

>Response; LOL, define science. And be careful not to wipe
>out most of the other fields that are called science but by
>definition are not.

As I said, "those horses seemed to be in the same species to me, but I did not look very closely" is not an argument grounded on valid scientific principles.

>Response: Now, I did not know that one. Sure I'll check that
>out. by the way I never said there were no dinasoures with
>no feathers. I am saying that scales do not evolve into
>feathers.

Then how did dinosaurs get feathers? And why are there dinosaurs with filamentous proto-feather structures? And why are the dino-feathers so structurally similar to bird feathers? And why is it only the birdlike therapod dinosaurs with feathers, instead of big monster dinos like Brontosaurus and Stegosaurus and such?

This is what I'm talking about, you make these claims based on no scientific principles or evidence whatsoever, just your personal opinion. If that is your personal opinion based on your religious beliefs, then fine - but the fact remains that they have no scientific validity, so stick to the religion and leave the science alone.

---------------------------------------------------------------------------------------------------
"This will not stand, ya know, this aggression will not stand, man." - The Dude

___________________

Mar-A-Lago delenda est

  

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Disprove Evolution [View all] , tappenzee, Sun Sep-21-03 04:15 AM
 
Subject Author Message Date ID
umm...
Sep 22nd 2003
1
umm...
Sep 24th 2003
49
      fuckin' classic!!
Sep 24th 2003
70
           excellent argument
Sep 24th 2003
71
yeah...
Sep 22nd 2003
2
one thing...
Sep 22nd 2003
3
AHHHHH!
Sep 24th 2003
72
GW Bush
Sep 22nd 2003
4
RE: GW Bush
Sep 29th 2003
99
TAP? You there?
Sep 22nd 2003
5
RE: TAP? You there?
Sep 22nd 2003
6
No... look at what you're saying
Sep 22nd 2003
8
      RE: No... look at what you're saying
Sep 23rd 2003
32
      RE: No... look at what you're saying
Oct 01st 2003
117
RE: TAP? You there?
Sep 22nd 2003
7
Jawnz...
Sep 22nd 2003
9
      RE: Jawnz...
Sep 22nd 2003
10
      Don't Stop
Sep 22nd 2003
11
           RE: Don't Stop
Sep 22nd 2003
12
                Keep Going
Sep 22nd 2003
14
                     RE: Keep Going
Sep 22nd 2003
15
                     RE: Keep Going
Sep 22nd 2003
17
                          Keep Going
Sep 22nd 2003
18
                               Keep going where?
Sep 22nd 2003
19
                                    I'm gonna give myself carpal tunnel....
Sep 22nd 2003
20
                                    why?
Sep 22nd 2003
24
                                         Incorrect
Sep 22nd 2003
26
                                              that's not an answer
Sep 22nd 2003
28
                                                   BECAUSE
Sep 22nd 2003
29
                                                        RE: BECAUSE
Sep 22nd 2003
31
                                                        no
Sep 23rd 2003
33
                                                             RE: no
Sep 23rd 2003
36
                                                        Morality has NOTHING to do with this discussion
Sep 23rd 2003
37
                                    Thank You Thank You Thank You
Sep 22nd 2003
23
                                    no problem
Sep 22nd 2003
25
                                    Hov!
Sep 25th 2003
77
                                    What makes you so certain
Sep 29th 2003
100
                                         works either way
Oct 01st 2003
116
      why does there have to be a creator though?
Sep 23rd 2003
35
           not only that
Sep 23rd 2003
38
God's creatures evolved...
Sep 23rd 2003
34
RE: Disprove Evolution
Sep 22nd 2003
13
RE: Disprove Evolution
Sep 22nd 2003
16
Please, EVERYONE
Sep 22nd 2003
21
One more time man... IT'S NOT RELEVANT
Sep 24th 2003
44
      SPEAK UP
Sep 24th 2003
59
           40thStreetBlack explained why over and over again.
Sep 25th 2003
80
                he can listen to Jimi; he just can't *hear* Jimi
Sep 27th 2003
88
fossil record show clear progression of horse evolution
Sep 22nd 2003
22
Here's a theory
Sep 22nd 2003
27
RE: Here's a theory
Sep 22nd 2003
30
I'm a Creationist...
Sep 23rd 2003
39
don't really need to prove anything
Sep 23rd 2003
40
So...
Sep 24th 2003
60
E. Coli bacteria
Sep 23rd 2003
41
hahaha
Sep 24th 2003
43
Even the experts overlook things
Sep 24th 2003
45
      hey, skippy
Sep 24th 2003
46
           Penicillin is a compound
Sep 24th 2003
54
           And as far as the two bit article goes
Sep 24th 2003
55
                well geez
Sep 24th 2003
56
                RE: And as far as the two bit article goes
Sep 24th 2003
57
                     RE: And as far as the two bit article goes
Sep 24th 2003
64
Faulty logic
Sep 25th 2003
76
      Actually E.coli
Sep 27th 2003
86
           Which begs the question
Sep 27th 2003
87
           works fine for simple single-celled microorganisms...
Sep 27th 2003
91
           the *primary* means of reproduction is binary fission
Sep 27th 2003
90
                conjugation is independent of reproduction
Sep 28th 2003
92
                     genomic evolution mapped in close relative of E.Coli
Sep 28th 2003
94
                          Ahh...
Sep 28th 2003
97
                               is that supposed to disprove the paper in some way?
Sep 30th 2003
103
                                    You presented the article
Sep 30th 2003
105
                                    I presented it as science showing evolution in bacteria
Sep 30th 2003
107
                                         RE: I presented it as science showing evolution in bact
Oct 01st 2003
113
                                              RE: I presented it as science showing evolution in bact
Oct 01st 2003
115
                                                   RE: I presented it as science showing evolution in bact
Oct 01st 2003
120
                                                        RE: I presented it as science showing evolution in bact
Oct 04th 2003
121
                                    you are so, so, so, so, right.
Sep 30th 2003
106
RE: Disprove Evolution
Sep 24th 2003
42
just to clear things up
Sep 24th 2003
58
Archaeopteryx: clear 'missing link' bet. bird &dinosaur
Sep 24th 2003
66
record shows horses evolved from one species to another
Sep 24th 2003
68
MY QUESTION...
Sep 24th 2003
47
they're working on it
Sep 24th 2003
48
      thanks...but...
Sep 24th 2003
51
           it doesn't necessarily HAVE to have worked out the
Sep 28th 2003
96
                HEY!
Oct 01st 2003
108
micro vs macro
Sep 24th 2003
50
this is why people choose to believe in creationism..
Sep 24th 2003
53
I am trying to maintain composure but...
Sep 24th 2003
61
      RE: I am trying to maintain composure but...
Sep 24th 2003
62
           RE: I am trying to maintain composure but...
Sep 24th 2003
65
           see post 66
Sep 24th 2003
67
           you can't be through
Sep 24th 2003
73
Same thing - one is just an extention of the other
Sep 24th 2003
69
      RE: Same thing - one is just an extention of the other
Sep 25th 2003
74
      whatever
Sep 25th 2003
75
      archaeopteryx is a bird, not dinasour
Sep 25th 2003
78
           semantics - it is still a clear transitional form
Sep 27th 2003
89
                still a bird
Oct 01st 2003
109
                     oh yeah before
Oct 01st 2003
112
                    
Evolution exsists
Sep 24th 2003
52
RE: Evolution exsists
Sep 24th 2003
63
a qoute from stephen gould
Sep 25th 2003
79
GTFOOHWTBS
Sep 26th 2003
81
exactly
Sep 28th 2003
95
did you see the one
Sep 29th 2003
98
      nah I missed that one
Sep 30th 2003
104
RE: GTFOOHWTBS
Oct 01st 2003
110
      can't even argue with you
Oct 01st 2003
114
out of context;discussing gradual evol vs punct equilib
Sep 28th 2003
93
      RE: out of context;discussing gradual evol vs punct equ
Oct 01st 2003
111
we were created, then we evolved
Sep 26th 2003
82
Hey Debate Club members?
Sep 26th 2003
83
RE: Disprove Evolution
Sep 26th 2003
84
Maybe I can...kind've....softshoe in here a bit
Sep 26th 2003
85
101 and having fun
Sep 30th 2003
101
102 no thanks to you.
Sep 30th 2003
102
RE: Disprove Evolution
Oct 01st 2003
118
HEAR ME OUT
Oct 01st 2003
119

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