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| Camarasaurus likely possesed a keratinous sheath | |
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| Topic Started: Apr 5 2017, 04:06 PM (708 Views) | |
| stargatedalek | Apr 5 2017, 04:06 PM Post #1 |
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I'm not slow! That's just my moe!
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AKA a beak in more or less vernacular. https://link.springer.com/article/10.1007/s12542-016-0332-6 |
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| Acinonyx Jubatus | Apr 5 2017, 04:49 PM Post #2 |
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I AM THE UNSHRINKWRAPPER!
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Can I just be the first to say... wait what |
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| magpiealamode | Apr 5 2017, 04:50 PM Post #3 |
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No good hero is a one-trick phony.
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Interesting. The second re-evaluation of dinosaur mouth tissue in like a week. |
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| DinoBear | Apr 5 2017, 04:51 PM Post #4 |
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Nah, thing is from November. |
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| magpiealamode | Apr 5 2017, 06:24 PM Post #5 |
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No good hero is a one-trick phony.
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It looked like the date was March 2017. Regardless, this is a bit of a tough sell for me, mostly because I am currently having a bit of difficulty picturing a beak with incisors. |
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| TheNotFakeDK | Apr 5 2017, 06:30 PM Post #6 |
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200% Authentic
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No, he's right, this was indeed originally published in November 2016, and has been discussed about between then and now. |
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| magpiealamode | Apr 5 2017, 06:34 PM Post #7 |
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No good hero is a one-trick phony.
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Oh okay. I've not seen it till now, what has some of the discussion been? |
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| BossMan, Jake | Apr 5 2017, 10:47 PM Post #8 |
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Son of God
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Have we got a picture of this beak? I'd be interested in knowing how it looked on the animal to the best of an artists degree |
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| Yi Qi | Apr 5 2017, 11:18 PM Post #9 |
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It's more likely that the implied tissue they attribute to a beak actually belong to fleshy lips. Beaks and teeth are mutually exclusive (in the same parts of the jaw line, that is). http://dinogoss.blogspot.com.br/2011/04/youre-doing-it-wrong-birds-with-teeth.html Although Bonitasaura did have some keratinous cutting like structure, but again, mostly on a part of its mouth where there are no teeth. https://www.ncbi.nlm.nih.gov/pubmed/15729763 Edited by Yi Qi, Apr 5 2017, 11:24 PM.
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| Incinerox | Apr 6 2017, 03:48 AM Post #10 |
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Āeksiot Zaldrīzoti
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Anything that can be explained by a beak here, can also be explained by fleshy gums and lips. Was the same as it is now. Never forget that there is a polarising bias in some paleontologists as to whether dinosaurs had lips or exposed teeth. Carr being the most notable as of late. |
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| stargatedalek | Apr 6 2017, 12:32 PM Post #11 |
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I'm not slow! That's just my moe!
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This only applies to "true beaks", which is to say a keratinous structure covering the outside and gums of an animal. As your citation even explains, creatures like Hesperornis still has keratinous facial coverings, they just didn't cover the gums. |
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