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Posted: 18 Jan 2004, 07:57
by Chris Ender
I must say that he has a valid point starting this discussion. First off Archaeopex was not a bird, it was a bird-like animal and if anyone ever watched Walking With Dinosaurs, that was mentioned. And the fact that every animal with the exception of a few rats, aligators, and sharks, nothing really survived the dino extinction. What makes someone say as a fact that birds did survive (while I'm no denying the possibility that they did) where did they live for 1,000 years while the sky was full of dust from the meteor strike? And if that didnt kill the dinos, what did?
As A Note: I'm supporting both sides on this issue.
Posted: 18 Jan 2004, 09:49
by AlphaChaosRaptor
You missed a few animals, I believe. One of those being the Coelacanth.
Posted: 18 Jan 2004, 16:06
by Tyrannis
QUOTE where did they live for 1,000 years while the sky was full of dust from the meteor strike?[/quote]
they didn't go anywhere I'm guessing that they probably ate the multitudes of dead dinos and they also most likely ate the most abundantfood source around the small rat-like mammals that were everywhere. a lot more survived the extinction than you think though many fish species seemed to survive and there were more than just a few rats these animals were everywhere I bet they would have a had a field day with all the huge corpses lying around and cannibalism would probaly be pretty common, and it wasn't 1000 years that the sky was full of dust 2 years most likely before the plants would be able to begin to photosythesize again so 3 years after I could see certain parts of the planet would already be fern plains and mammals, and insects would be pretty common and so birds would have just fine
Posted: 18 Jan 2004, 17:05
by lilgamefreek
Another point, was it a meteor? /unsure.gif" style="vertical-align:middle" emoid=":unsure:" border="0" alt="unsure.gif" />
Posted: 18 Jan 2004, 21:30
by AlphaChaosRaptor
Do you not know about the Yucatan crater? It was discovered years ago. I forgot the details, but this crater, which is partially underwater, is believed to be the cause of the Cretaceous extinction. Then there's the layer of Iridium which forms the K-T boundary. Mind you Iridium is a very rare element on earth, and such a layer at this one particular point of geologic time suggests an explosive event which allowed the earth to be covered in a layer of this element, as it is highly unlikely that any element would form naturally in this way. The evidence all points to it being a celestial body as the cause, which is why the view is so strongly held.
Posted: 19 Jan 2004, 00:41
by lilgamefreek
I'm not trying to shoot it down. I even believe it, I'm just saying, because Enderwas basing his point entirely on the impact, was it a meteor.
Posted: 20 Jan 2004, 20:03
by Tyrannis
I don't think it matters what it is that hit the planet cause it had the same effect but having said that I think it was an iridium rich astroid which would explain the iridium layer that marks the K-T boundary. AlphaChaosRaptor it is the yucatan crater that scientists believe killed the dinosaurs.
Posted: 25 Jan 2004, 07:13
by AlphaChaosRaptor
Why are you telling me? I never denied that.
Posted: 26 Jan 2004, 02:05
by Tyrannis
No you said that you weren't sure so I was just clearing that up is all no offense intended
Posted: 26 Jan 2004, 11:26
by aggie0175
Birds evolved from dinosaurs just as mammals evolved from a small dinosaur/early reptile. Simple as that.