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#daspletosaurus #lips #rex #trex #tyrannosaurus #tyrannosaurusrex
Published: 2017-04-03 19:50:51 +0000 UTC; Views: 4112; Favourites: 144; Downloads: 20
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So... yeh. You've all probably heard the.... daspletosaurus news. (These news > www.livescience.com/58474-new-… )In my opinion, there paper does not really explain why tyrannosaurids "didn't have lips". It mostly focuses on the question of: "Did tyrannosaurids have sensitive scales on their snouts, or just beaks? And why? (based on the new discovery)"
I believe that both scales and bare skin are possible (on the snout) , but i just made this because.. you can never have enough lipped rexes!
Since we don't have enough evidence to prove that they didn't have lips, i'm free to speculate, and so are you!
Remember, this is my opinion, but there's a 50% chance that i'm wrong. So, please, don't complain about the lips or whatever. I know that both theories could be correct, but i will always reconstruct tyrannosaurids with lips unless we find solid evidence that they didn't have them.
The paper said that they were lipless, but I personally Don't buy it.
Only time will tell....
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Comments: 66
Somoist555 [2017-04-03 20:17:18 +0000 UTC]
I'm honestly not too sure about this whole thing, but I don't know jack about dinosaurs.
as for the art...
ABSOLUTELY PHENOMENAL!
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Trendorman In reply to ??? [2017-04-03 19:56:30 +0000 UTC]
I think because their pray were giant bucking bronko type dinosaurs, that T.rex if they had full lips would have injury's with biting their own lips, SO I think they did hae soft lips, but they were not enough to cover bare teeth.
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FeatherNerd In reply to Trendorman [2017-04-03 20:06:37 +0000 UTC]
I don't think that their lips would be that flexible. Anyway, Komodo dragons and big lizards in general have sensitive lips that cover their sharp and sometimes long teeth, but they don't injure themselves (unless they have a disorder or a deformed skull).
Reptilian lips are built in a way so that the animal can't injure itself, unlike mammalian lips, which are usually much more flexible.
(Also keep in mind that mammalian skulls differ a lot from reptilian and avian ones, especially concerning the placement and formation of the teeth )
But, it's your opinion, and i can't completely disagree.
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Trendorman In reply to FeatherNerd [2017-04-03 20:22:02 +0000 UTC]
Well thank you, I know I bite the Inside of my mouth A lot, and it hurts, But T.rex had, very long teeth, even though most of it was hidden in the skull while Komodo dragons have smaller more needle like teeth. But Crocodiles had ragged in even teeth In their jaw, so they had no lips, T.rex's teeth were even and neat, getting smaller and larger based on where in the mouth, SO I think because Their teeth were so big, yet evenly placed, they had some lips, but not enough to cover the teeth fully.
But I just made this up on the spot and I know probably has a lot of error in it.
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FeatherNerd In reply to Trendorman [2017-04-03 21:02:43 +0000 UTC]
You've got a point there.
However, most of the times, dinosaurs are reconstructed with very long teeth, just because the fossils have teeth slipping out of their sockets. It's true that some of them had very long teeth, which couldn't possibly be covered by lips, but, just as long as the teeth don't exceed the lower jaw, lips are possible to exist.
Crocodiles and alligators have teeth randomly placed on their snouts. Take a look at the formation of their teeth. One tooth up,
One tooth down, 2 teeth up, 1 tooth down. Completely random. It's basically impossible for lips to exist on these animals. (And if they did have lips, injuries would be highly likely).
Also, crocodilians are semi-aquatic predators, while most theropod dinosaurs were land-dwelling predators.
Theropod Dinosaurs did not have this random tooth formation. All of the teeth from the top part of the jaw covered the teeth of the lower jaw, and that's why they were not randomly placed. This is about the same tooth formation that Komodo dragons (and some other lizards) have, for example ( www.skullsunlimited.com/userfi… )
And as you know, komodo dragons have full lips.
As you can see, the teeth of the top part of the jaw cover the lower jaw, but the animal still has lips.
Also, take a look at the skull of a megalania (the biggest lizard ever discovered. Its skull was about half the size compared to the skull of an average T.rex (maybe even bigger than that).
Exposed teeth on the skull, yet it had lips.
(We're 100% sure that it had lips)
(Well, its lower jaw was relatively longer than the top jaw, but they had relatively large teeth that covered the lower jaw and also left a large gap that would make lips more unlikely, like the gap that rex has.
Megalania skull> ( s-media-cache-ak0.pinimg.com/7… )
(This is just proof that even large predators can have lips)
This is just 1 hypothesis. It may not be correct, but it sounds pretty reasonable to me (at least).
Feel free to express your own opinion on the matter.
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Trendorman In reply to FeatherNerd [2017-04-03 21:17:46 +0000 UTC]
Thank you for the Information! It's just hard to tell because we have no close relatives with lips, just beaks. Maybe we will be lucky and find an imprint of a Tyrannosaur who hit the ground to hard it made a perfect imprint of its face.
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AntonellisofbBender In reply to FeatherNerd [2017-04-03 20:31:24 +0000 UTC]
your very welcome
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