Dino to Bird evolution Myth

A former Queensland science teacher has opened what is being described as the world's first Creation Museum, situated in the United States. The museum teaches that the Earth is barely 6,000 years old and that God created dinosaurs and humans at roughly the same time. It is not surprising the museum has attracted the wrath of some scientists, who have been protesting outside at the official opening.

America's newest tourist attraction is a state-of-the-art multimedia museum with Adam and Eve, Noak's Ark and children frolicking near dinosaurs.

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ktrianta said:

Amazing how people turn this into a creation v evolution debate.

Wrong thread for this.

This is about the dino to bird evolution myth.

Are people so insecure in their belief of evolution, that every questioning of aspects of their belief is a threat to bring the whole edifice down???

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trainspotter said:

OOOOOOOOOOOOOPSSSSSS ktrianta ... for every action there is an equal and opposite reaction. My scientist can beat up your scientist. So there!

Primitive feathered dinosaur Tianyulong confuciusi

The creature, found in China, belonged to a large group of dinosaurs previously thought to have no connection with birds or feathers.

Yet its fossil remains contain clear signs of feather-like structures, including long tail filaments. A number of theropod fossils have been discovered bearing the remains of primitive feathers, thought to have been used for insulation or display rather than flight.

But the newly discovered dinosaur, named Tianyulong confuciusi, was not a theropod. It did not even belong to the vast group called Saurischia which included theropods, early birds and huge plant-eating dinosaurs such as Brachyosaurus.

Tianyulong was part of the other large dinosaur group, Orinithischia, which included duck-billed hadrosaurs and the armoured Triceratops and Stegosaurus.

The dinosaur dates back to the early Cretaceous period, around 130 million years ago. Its incomplete fossil skeleton was found in Liaoning Province, north-eastern China, the home of many other feathered dinosaurs.

Even in its own time, Tianyulong was a "living fossil", bearing features tying it to a group of herbivorous dinosaurs that evolved 70 million years earlier.

Discussing the research in Nature, US expert Dr Lawrence Witmer, from Ohio University, wrote: "Perhaps the only conclusion that can be drawn... is that little Tianyulong has made an already confusing picture of feather origins even fuzzier."

I think this is what is being refered to by your scientist.

BUT WAIT THERE IS MORE ! The National Geographic (who we all know can be trusted) has this to say: http://news.nationalgeographic.com/news/2007/09/070906-dinosaurs-birds.html

Oh dear .... ONE ALL ... play on .... you are all in it.

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ktrianta said:

We aren't suggesting that dinosaurs and birds may not have had a common ancestor somewhere in the distant past," Quick said. "That's quite possible and is routinely found in evolution. It just seems pretty clear now that birds were evolving all along on their own and did not descend directly from the theropod dinosaurs, which lived many millions of years later."

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ktrianta said:

Thanks trainspotter, at least you are on point with the oppossing view. The artcile l referred to challenges the dino to evolution myth, it clearly supports evolution if people bothered to take the time to read it.
Guess that some people are so sensitive that any questioning of evolution is not allowed without responding by attacking the man.

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trainspotter said:

It is what it is ktrianta. Nature of the beast in this place. Attack first then read second. Then make grovelling apology about having some weird disease that caused you to have a brain snap. Ususally no apology, just no response is the answer. Get used to it. Have a teaspoon of cement and take off the rose coloured glasses. These things tend to get off topic and hijacked to a diffferent slant so just grab the steering wheel and put the thing back on track.

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2020hindsight said:

Like I say, if ktrianta agrees with that post - that evolution is true but possibly in error in the detail - then I'm happy.

It would be strange, since it flies in the face of earlier posts on "religious nuts" thread, but hey - ktranta was just misunderstood there as well I guess. I notice there you were steering towards "the jury is still out on evolution" (paraphrased).

But now you've changed right?

Hey I apologise, no probs ... with those provisos.

But also - Like I say, maybe kt you'd like to answer my post #3? maybe agree that there is other evidence to also consider?

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2020hindsight said:

Like I say, if ktrianta agrees with that post - that evolution is true but possibly in error in the detail - then I'm happy.

It would be strange, since it flies in the face of earlier posts on "religious nuts" thread, but hey - ktranta was just misunderstood there as well I guess. I notice there you were steering towards "the jury is still out on evolution" (paraphrased).

But now you've changed right?

Hey I apologise, no probs ... with those provisos.

But also - Like I say, maybe kt you'd like to answer my post #3? maybe agree that there is other evidence to also consider?

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The realization that dinosaurs are closely related to birds raised the obvious possibility of feathered dinosaurs. Fossils of Archaeopteryx include well-preserved feathers, but it was not until the early 1990s that clearly nonavian dinosaur fossils were discovered with preserved feathers. Today there are more than twenty genera of dinosaurs with fossil feathers, nearly all of which are theropods.

Most are from the Yixian formation in China.

The fossil feathers of one specimen, Shuvuuia deserti, have even tested positive for beta-keratin, the main protein in bird feathers, in immunological tests.[1]

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ktrianta said:

...Just the same really as the global warming debate where the general consensus seems to crowd anyone out with an alternate view and I think a thread has been done on this, so no point going there now.

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Fossil feather impressions are extremely rare; therefore only a few feathered dinosaurs have been identified so far. However, through a process called phylogenetic bracketing, scientists can infer the presence of feathers on poorly-preserved specimens. All fossil feather specimens have been found to show certain similarities. Due to these similarities and through developmental research almost all scientists agree that feathers could only have evolved once in dinosaurs. Feathers would then have been passed down to all later, more derived species (although it is possible that some lineages lost feathers secondarily).

If a dinosaur falls at a point on an evolutionary tree within the known feather-bearing lineages, scientists assume it too had feathers, unless conflicting evidence is found. This technique can also be used to infer the type of feathers a species may have had, since the developmental history of feathers is now reasonably well-known.[32]

......

The following simplified cladogram follows these results, and shows the likely distribution of plumaceous (downy) and pennaceous (vaned) feathers among theropods.[33] Note that the authors inferred pennaceous feathers for Velociraptor based on phylogenetic bracketing, a prediction later confirmed by fossil evidence.[5]

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OSU research on avian biology and physiology was among the first in the nation to begin calling into question the dinosaur-bird link since the 1990s. Other findings have been made since then, at OSU and other institutions, which also raise doubts. But old theories die hard, Ruben said, especially when it comes to some of the most distinctive and romanticized animal species in world history.

"Frankly, there's a lot of museum politics involved in this, a lot of careers committed to a particular point of view even if new scientific evidence raises questions," Ruben said. In some museum displays, he said, the birds-descended-from-dinosaurs evolutionary theory has been portrayed as a largely accepted fact, with an asterisk pointing out in small type that "some scientists disagree."

"Our work at OSU used to be pretty much the only asterisk they were talking about," Ruben said. "But now there are more asterisks all the time. That's part of the process of science."

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