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| Eat this, scaly T. rex fans!; HAHAHAHAHAAA! | |
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| Tweet Topic Started: Apr 5 2012, 04:51 AM (16,955 Views) | |
| Eotyrannus | Apr 5 2012, 04:51 AM Post #1 |
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Unicellular Organism
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http://blogs.discovermagazine.com/notrocketscience/2012/04/04/yutyrannus-a-giant-tyrannosaur-with-feathers/#more-6682 Finally, there is good evidence that large tyrannosaurs had feathers! This is outside of the true tyrannosaurs, being more closely related to creatures such as Guanlong, but sheer size alone makes it a good bet that Tyrannosaurus had feathers. |
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| Godzillasaurus | Jul 30 2012, 12:50 AM Post #61 |
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Reptile King
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As I said, the "feathers" in animals like psittacosaurus were only quills. Not really feathers, but advanced scales. |
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| Jinfengopteryx | Jul 30 2012, 12:56 AM Post #62 |
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Aspiring paleontologist, science enthusiast and armchair speculative fiction/evolution writer
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Thats true, but this can be also claimed as a kind of feathers. |
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| Godzillasaurus | Jul 30 2012, 01:28 AM Post #63 |
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Reptile King
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I guess. They may be regarded as feathers, but they are not. |
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| Cat | Jul 31 2012, 12:03 AM Post #64 |
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Omnivore
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This reconstruction looks more reasonable. However, I think if T-rex had feathers at all, they would be a row of quills along the top of the head and back, rather than an homogeneous cover of short feathers over parts of the body. The function of these quills would be just display, since the huge dimensions of this dino and the climate in which it lived would make protection from cold weather unecessary. |
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| theropod | Jul 31 2012, 12:13 AM Post #65 |
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palaeontology, open source and survival enthusiast
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These are at least feather like structures, and they can be regarded as ancestral to true feathers. I think theories of many other dinosaurs outside coelurosauria being feathers can´t be romed out, for example i could imagine many small ornithopods being feathered while the line evolving into marginocephalians kept the primitive quills (wasn´t there a study saying heterodontosaurs to be close relatives of marginocephalians btw), and larger forms like hadrosaurs lost them again. I could also imagine some quills on stegosaurs, maybe to serve as an intimidation or for finding a mate together with the plates and spikes (the look seems likely to me) |
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| Godzillasaurus | Jul 31 2012, 12:32 AM Post #66 |
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Reptile King
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Exactly. Quills shouldn't be called feathers, but feather-like structures. As far as I can tell, only ceoulosaurs and supposedly scirumimus sported true feathers. Though scirumimus might be a ceoulosaur. |
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| Jinfengopteryx | Jul 31 2012, 02:28 AM Post #67 |
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Aspiring paleontologist, science enthusiast and armchair speculative fiction/evolution writer
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Of course it could be, but as long as we have no evidence, it should be claimed to be a Megalosaur. |
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| theropod | Jul 31 2012, 02:44 AM Post #68 |
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palaeontology, open source and survival enthusiast
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Feathers in dinosaurs and the evolution of birds definitely is a complicated subject. At the moment, I guess nothing debunks displayinga lot of dinosaurs with featherlike body covering, but nothing confirms it either. We have some fossils with skin impressions (mostly large ones btw, so maybe small animals had feathers but larger ones hadn´t), and many other with feathers. As long as there isn´t more concrete evidence, it remains everyones imagination, except for maniraptorans which certainly were feathered altogether.
Edited by theropod, Jul 31 2012, 02:44 AM.
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| Carcharadon | Aug 7 2012, 11:21 PM Post #69 |
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Shark Toothed Reptile
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IMO, I don't think an adult T.rex was feathered, probably only when it was young I think it lost feathers when it grew It was an advanced tyrannosaurid while Yutyrannus (which was found with feathers) was a primitive tyrannosauroid? So just because Yutyrannus had feathers, why the hell would that apply to T.rex? |
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| Godzillasaurus | Aug 8 2012, 01:54 AM Post #70 |
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Reptile King
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The ceolosaurs were the most advanced group of dinosaurs. As the family tree got more and more advanced, feathers became more evolved. It only makes sense that the most advanced dinosaurs had feathers. |
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| Admantus | Aug 8 2012, 02:28 AM Post #71 |
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Herbivore
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For anyone who is still trying to grasp the idea of t.rex with feathers, imagine it as a giant, dinosaurian gastornis. |
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| Oaglor | Aug 9 2012, 06:49 AM Post #72 |
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Autotrophic Organism
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Gastornis is a bird, which makes it a dinosaur. Otherwise, I agree. |
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| Cat | Aug 11 2012, 04:11 AM Post #73 |
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Omnivore
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Evolution is about adaptation. You seem to believe in a teleological process, where nature inherently tends to create more 'advanced' features with time. Feathers are more advanced than scales only in the sense that they appeared later. But if scales or naked skin were more useful to a given animal in a given environment it's likely that that animal would retain those features - or revert to them. |
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| Godzillasaurus | Aug 11 2012, 04:33 AM Post #74 |
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Reptile King
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Still, feathers have not been found in any therapods more primitive than ceoulosaurs with one exception, sciurumimus, which might not have been a megalosaur. I know that evolution is about adaption, but in this sense, it is about, well, being more advanced. |
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| Admantus | Aug 12 2012, 03:26 AM Post #75 |
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Herbivore
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http://smnt2000.deviantart.com/journal/The-presence-of-feathers-in-Dinosauria-in-6-points-283194520 Just to put the nail in the coffin. The person in the link puts up a couple of very good points. |
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