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Author Topic:   Archaeopteryx and Dino-Bird Evolution
Coragyps
Member (Idle past 843 days)
Posts: 5553
From: Snyder, Texas, USA
Joined: 11-12-2002


Message 38 of 200 (286942)
02-15-2006 1:41 PM
Reply to: Message 37 by Mallon
02-15-2006 1:37 PM


Re: Ugh!
Hi, new guy!
I like your illustrations a lot!

This message is a reply to:
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Coragyps
Member (Idle past 843 days)
Posts: 5553
From: Snyder, Texas, USA
Joined: 11-12-2002


Message 91 of 200 (308811)
05-03-2006 3:33 PM
Reply to: Message 81 by Hyroglyphx
05-03-2006 12:48 PM


Re: Archaeoraptor and Archaeopteryx
Avian body temperature is vastly different from saurians
What is the typical body temperature of a saurian? When did you measure it? Where? Axillary, rectal, or oral?

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Coragyps
Member (Idle past 843 days)
Posts: 5553
From: Snyder, Texas, USA
Joined: 11-12-2002


Message 97 of 200 (308824)
05-03-2006 4:29 PM
Reply to: Message 94 by Hyroglyphx
05-03-2006 4:07 PM


Re: You confuse very well-known theories and splice conjecture into it
There is an inviolate gulf fixed between certain organisms so that it is inconceivable that they are related in any way.
And there is a bald-faced assertion that you cannot support with anything other than further bald-faced assertions. And something being "inconceivable" to nemesis_juggernaut may indicate more about that individual's ability to "think of six impossible things before breakfast" than about biological reality.

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Coragyps
Member (Idle past 843 days)
Posts: 5553
From: Snyder, Texas, USA
Joined: 11-12-2002


Message 113 of 200 (308927)
05-03-2006 10:33 PM
Reply to: Message 110 by Hyroglyphx
05-03-2006 10:06 PM


Re: Atavisms
Some doctors theorize that its functionality lies with its ability in lymphnode function.
A pretty durn minor functionality, apparently, since the human appendix has about as many "Peyer's patches" per square centimeter as any of the adjacent small intestine does. But not very many square centimeters....
but absent in all the mammals between the wombat and man.
Nope.
A vermiform appendix is not unique to humans. It is found in all the hominoid apes, including humans, chimpanzees, gorillas, orangutans, and gibbons, and it exists to varying degrees in several species of New World and Old World monkeys.
And see Vestigiality of the human appendix for some more detail on appendicular vestigiality.

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Coragyps
Member (Idle past 843 days)
Posts: 5553
From: Snyder, Texas, USA
Joined: 11-12-2002


Message 118 of 200 (308993)
05-04-2006 7:40 AM
Reply to: Message 116 by Hyroglyphx
05-04-2006 12:24 AM


Re: Atavisms
This doesn't seem to make sense if we are to follow the evolutionary advancement.
Here may be your problem, nem j! "Evolutionary advancement" sounds like a "great chain of being" argument: a progression from the lowly worm to the exalted philosopher. It ain't like that. Each lineage - capuchin vs howler monkeys, for instance - has its own history, and each is just as "advanced" as the other. All have evolved to end up where they are this week.
Apparently the vermiform appendix is of little enough consequence in primates that various of us can fail to develop one with no serious repercussions. I'd love to see a species-by-species breakdown of which primates have one and which don't. I'll bet that the distribution tracks lineages, just as you note that it does in the four anthropoids.

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Coragyps
Member (Idle past 843 days)
Posts: 5553
From: Snyder, Texas, USA
Joined: 11-12-2002


Message 130 of 200 (347423)
09-07-2006 11:13 PM
Reply to: Message 129 by Someone who cares
09-07-2006 10:28 PM


Re: Archaeopteryx- most likely fraud, if not, still not transitional
If that fossil was formed, there must have been a great force that did it....
The word of the day is taphonomy. Look it up. The "great force" is a few hundreds/thousands of years in the very calm, quiet, oxygen-free ooze at the bottom of a lagoon.

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Coragyps
Member (Idle past 843 days)
Posts: 5553
From: Snyder, Texas, USA
Joined: 11-12-2002


Message 142 of 200 (347522)
09-08-2006 9:30 AM
Reply to: Message 131 by Someone who cares
09-08-2006 12:12 AM


Re: Archaeopteryx- most likely fraud, if not, still not transitional
Excuse me? Did you just say fossils form in quiet, still lagoons?!!?
Yes, I did. Yesterday the Word of the Day was taphonomy: today it's Solnhofen. You will get behind if you don't start looking them up pretty quick. Google is your friend.

This message is a reply to:
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Replies to this message:
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Coragyps
Member (Idle past 843 days)
Posts: 5553
From: Snyder, Texas, USA
Joined: 11-12-2002


Message 177 of 200 (347808)
09-09-2006 4:28 PM
Reply to: Message 155 by Someone who cares
09-08-2006 10:05 PM


Re: Archaeopteryx- most likely fraud, if not, still not transitional
As for the other word, you're joking, right?
No.
The Solnhofen Limestone is the remnant of that lagoon bottom I mentioned earlier. All seven known Archaeopteryx fossils came from it. And it didn't get deposited in a giant forty-day flood, either.

This message is a reply to:
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Replies to this message:
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Coragyps
Member (Idle past 843 days)
Posts: 5553
From: Snyder, Texas, USA
Joined: 11-12-2002


Message 178 of 200 (347810)
09-09-2006 4:34 PM
Reply to: Message 157 by Someone who cares
09-08-2006 10:20 PM


Re: Taphonomy, lagerstatte
Most of the many millions of fossils in the world are found in rock which has been affected by water, and, therefore, the fossils of these animals were formed as a result of the animals being buried suddenly and quickly under tremendous water pressure."
What? Because a rock "has been affected by water," anything in it was "buried suddenly and quickly under tremendous water pressure?" That's rather a non sequitur, don't you think? And what would "tremendous water pressure" have to do with whether a bone fossilizes or not? Is "tremendous" 50 psi? 500 psi? This is pure unsupported assertion.

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