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| Quadrupedal theropods | |
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| Topic Started: Apr 22 2010, 06:59 PM (5,062 Views) | |
| Pando | Apr 22 2010, 06:59 PM Post #1 |
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Obey or I'll send you to the moon
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Are/would they of been possible? I'm asking this question because of this awesome feathered quadrupedal theropod I drew a few years ago when I just started getting interested in Spec Evo. Too bad it's gone now, I really wish that I hadn't lost it
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| Scrublord | Apr 25 2010, 01:37 PM Post #16 |
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Father Pellegrini
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I,ve seen a lot of old pictures of Baryonyx on four legs, and it's still possible that it might have rested or swam like that, since we know spinosaurs were probably semi-aquatic. Speaking of spinosaurs, does Spec still have them? Because I actually had an idea for some Spec-spinosaurs that would become more and more quadrupedal and aquatic until they finally became full-fledged swimmers.
Edited by Scrublord, Apr 25 2010, 01:39 PM.
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My Projects: The Neozoic Redux Valhalla--Take Three! The Big One Deviantart Account: http://elsqiubbonator.deviantart.com In the end, the best advice I could give you would be to do your project in a way that feels natural to you, rather than trying to imitate some geek with a laptop in Colorado. --Heteromorph | |
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| Rick Raptor | Apr 25 2010, 02:06 PM Post #17 |
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Adolescent
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Spinosaurids died out during the Late Cretaceous (some ten million years before KT), didn´t they? And I think the depictions of Baryonyx or Spinosaurus on four legs are inaccurate. Like all theropods they had inward-facing hands, so they would have to lean on the edges of their hands. |
| [My DeviantArt account] | |
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| Holben | Apr 25 2010, 02:19 PM Post #18 |
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Rumbo a la Victoria
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Yes, and their shoulders wouldn't be too good for support. |
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Time flows like a river. Which is to say, downhill. We can tell this because everything is going downhill rapidly. It would seem prudent to be somewhere else when we reach the sea. "It is the old wound my king. It has never healed." | |
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| Pando | Apr 25 2010, 08:07 PM Post #19 |
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Obey or I'll send you to the moon
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What's wrong with its shoulders? The only thing I see wrong with it is that its front feet are backwards. |
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| Margaret Pye | Apr 25 2010, 09:05 PM Post #20 |
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Adult
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The Faux's Giraffebird is supposed to be a flightless bird, but I think it works better as a therizinosaur. Most of them were pretty short-tailed, so completely losing the tail makes sense. |
| My speculative dinosaur project. With lots of fluff, parental care and mammalian-level intelligence, and the odd sophont. | |
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| Pando | Apr 25 2010, 09:17 PM Post #21 |
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Obey or I'll send you to the moon
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The only problem I have with them as therizinosaurs are: The beak is to birdish and the FEET ARE BACKWARDS! |
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| Toad of Spades | Apr 25 2010, 11:28 PM Post #22 |
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Clorothod
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Its probably knuckle walking. |
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Sorry Link, I don't give credit. Come back when you're a little...MMMMMM...Richer. Bread is an animal and humans are %90 aluminum. | |
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| Pando | Apr 25 2010, 11:53 PM Post #23 |
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Obey or I'll send you to the moon
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Doesn't look like so. |
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| Pando | Apr 26 2010, 10:35 AM Post #24 |
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Obey or I'll send you to the moon
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I have found 3 quadrupedal theropods in DevArt. A quadruped Ornithomime: ![]() A quadruped Maniraptorian: Spoiler: click to toggle And finally a random quadruped theropod:
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| Rick Raptor | Apr 26 2010, 12:02 PM Post #25 |
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Adolescent
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Oh my God, the quadrupedal Maniraptor is amazing! |
| [My DeviantArt account] | |
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| Pando | Apr 26 2010, 02:35 PM Post #26 |
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Obey or I'll send you to the moon
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I wouldn't expect the front fingers to be so long though. Still, good stuff. |
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| Holben | Apr 27 2010, 11:56 AM Post #27 |
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Rumbo a la Victoria
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You want limbs to take weight? Well, theropod shoulders aren't designed for that. They are drawn back along the spine, and not very firmly joined to it. |
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Time flows like a river. Which is to say, downhill. We can tell this because everything is going downhill rapidly. It would seem prudent to be somewhere else when we reach the sea. "It is the old wound my king. It has never healed." | |
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| Toad of Spades | Apr 27 2010, 03:44 PM Post #28 |
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Clorothod
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Given enough time their shoulders could adapt to it. Primitive versions of many groups, including sauropodomorphs, thyreophorans, ceratopsians, and later ornithopods, all evolved from bipedal ancestors. Also the earliest dinosaurs were bipeds. So given enough time and specializations, theropods have no real reason keeping some of them from becoming quadrapedal.
Edited by Toad of Spades, Apr 27 2010, 03:49 PM.
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Sorry Link, I don't give credit. Come back when you're a little...MMMMMM...Richer. Bread is an animal and humans are %90 aluminum. | |
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| Margaret Pye | Apr 29 2010, 04:47 AM Post #29 |
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Adult
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What do people think? |
| My speculative dinosaur project. With lots of fluff, parental care and mammalian-level intelligence, and the odd sophont. | |
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| Carlos | May 2 2010, 04:41 PM Post #30 |
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Adveho in me Lucifero
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Quadrupedal spinosaurs not only are not taken seriously anymore, but they'd be completly and uterly impossible. Theropods in general aren't exactly the dinosaur stock more prone to quadrupedalism, though I can see some groups capable of developing it. One major thing in the way is how pronation is so hard among dinosaurs; it only developed twice, and quite differently (the structure of the sauropod arm is quite different from the ornithischian/mammalian one). However, if the animal walks on its knuckles rather than developing pronation it can still be quadrupedal, its just hard to be a conventional quadruped that way |
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Lemuria: http://s1.zetaboards.com/Conceptual_Evolution/topic/5724950/ Terra Alternativa: http://s1.zetaboards.com/Conceptual_Evolution/forum/460637/ My Patreon: https://www.patreon.com/Carliro ![]() | |
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