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Author | Topic: Dinosaur transitional - From carnivore to vegetarian | |||||||||||||||||||||||||||||||
Brad Member (Idle past 4815 days) Posts: 143 From: Portland OR, USA Joined: |
A new dinosaur that was caught in the act of evolving from carnivore to herbivore has been found. The dinosaur has bones that were obviously used to catch and eat other animals; it also is starting to show bones that would aid in the eating of plants. This seems to be a rather indisputable transitional fossil.
Error Brad {Topic promoted from PNT by Adminnemooseus}
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jar Member (Idle past 421 days) Posts: 34026 From: Texas!! Joined: |
Are you claiming it is changing from Meat Eating Kind to Grass eating Kind?
But isn't it still dinosaur kind? This message has been edited by jar, 05-05-2005 09:37 PM Aslan is not a Tame Lion
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coffee_addict Member (Idle past 504 days) Posts: 3645 From: Indianapolis, IN Joined: |
Can someone link me to a more technical paper or article for this topic? The cnn article tells you next to no useful information.
This is a perfect example of why so many people think researchers like us sit on our arses all day making stuff up.
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arachnophilia Member (Idle past 1371 days) Posts: 9069 From: god's waiting room Joined: |
Are you claiming it is changing from Meat Eating Kind to Grass eating Kind? But isn't it still dinosaur kind? oh jar, what am i gonna do with you? (it should be noted also that this dinosaur is transitional in another way. it is yet another avian dinosaur)
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meshuggahcynic Inactive Member |
These are the first two that I found that had a bit more "teeth" to them ...
Dinosaur embraced vegetarianism | Nature quote: Page not found – Utah Geological Survey This is going to put a big crimp into the whole All things were vegetarian, until the fall discussions.
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AdminJar Inactive Member |
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Andya Primanda Inactive Member |
quote: Dinosaur, yes. Avian, unlikely. Sister to birds, probably. But us BAND people still waiting for the pre-Archaeopteryx raptor. And dinosaur depictions look more and more like chickens these days... Where have all the terrible lizards gone?
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coffee_addict Member (Idle past 504 days) Posts: 3645 From: Indianapolis, IN Joined: |
Dino != lizard && reptile
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arachnophilia Member (Idle past 1371 days) Posts: 9069 From: god's waiting room Joined: |
And dinosaur depictions look more and more like chickens these days... Where have all the terrible lizards gone? because biologists have recognized that the whole order is actually transitional. that, and we keep finding dinosaurs that have feathers, like this one.
Dinosaur, yes. Avian, unlikely avain dinosaurs are what we call the whole group dinosaurs that exhibit avian features, such as feathers. there's at least a dozen of them, probably more.
Sister to birds, probably. But us BAND people still waiting for the pre-Archaeopteryx raptor. well, you might be looking at it. when was this one around? sister, probably. evolution very rarely makes a direct path. this one's just closer to the common ancestor in the amily tree than modern birds.
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Brad McFall Member (Idle past 5060 days) Posts: 3428 From: Ithaca,NY, USA Joined: |
But the author admitted on NPR yesterday that the thing's teeth could eat lizards. That was enough for me. I'm back to the number of digits on the fish limb and what counts for/as a sauroid form. Seems like the information is still buried in the 1900s to me.
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Cthulhu Member (Idle past 5879 days) Posts: 273 From: Roe Dyelin Joined: |
Why would you need to find a pre-Archie 'raptor anyways? Archaeopteryx doesn't have any exclusively avian synapomorphies (sp?), which means that it probably isn't a bird.
Proudly attempting to Google-Bomb Kent Hovind's website Lying Dumbass
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Andya Primanda Inactive Member |
Why, to fill the gap of Archy's ancestor of course!
Surely you don't think those raptors born 50 million years after Archaeopteryx were her ancestors? To convert me from BAND to dino-bird, I would only need one evidence of the existence of raptors before Archy. Four-Wings, Microraptor gui came close, but still younger than Archy.
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Cthulhu Member (Idle past 5879 days) Posts: 273 From: Roe Dyelin Joined: |
Archie's not a bird anyways, so why bother finding its ancestor?
I have no signature.
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Brad McFall Member (Idle past 5060 days) Posts: 3428 From: Ithaca,NY, USA Joined: |
Who knows?
Maybe the "snake like" creature (the author's own word) did not use so-called protofeathers for heat or as a exapatation at all but instead it wore down it's teeth chomping on turtles towards the softshell kind spreading it's "wings" on the water surface so as to entice turtles up the water column and thus become prey. There are so many possibilities for looking into relations, but we popularly tend not to explore them because our feelings get the better of our lack of observations of the modern day relative forms.
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Palaeos Inactive Member |
quote: Eh, that's the idea now. Generally all the maniraptorians are portrayed with feathers now, that group includes genera such as Velociraptor and Archaeopteryx and Tyrannosaurus. However its unlikely IMHO, that anything over a few tons had feathers, since most of those particular dinosaurs had them only for insulation purposes due to their small size. As for this new transitional dinosaur species, here is the official publishing of it for your enjoyment: Link is fixed:
Click here for PDF of paper Here is also a picture of the reassembled skeleton Utah State Paleontologist James Kirkland.
This message has been edited by Palaeos, 06-03-2005 11:17 PM
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