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Spinosaurus Wacky Theories by Rodrigo-Vega Spinosaurus Wacky Theories by Rodrigo-Vega
A quadrupedal Spinosaurus with a hump instead of a sail.
There are some things in the skeleton that support this ideas..
The hand would be turned sideways, like in anteaters, since theropods had their hands facing each other and large claws look cool that way and would be less problematic.
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:iconcarvalhonobre:
CarvalhoNobre Featured By Owner Apr 7, 2017
HEY, that is spoiler!!!
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:iconthedubstepaddict:
TheDubstepAddict Featured By Owner Apr 7, 2017  Hobbyist Traditional Artist
Holy shit yoz can predict the future
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:iconatlantis536:
Atlantis536 Featured By Owner Sep 9, 2016  Hobbyist Traditional Artist
Correct! Execpt for the sail, that is.
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:icongrisador:
grisador Featured By Owner Oct 23, 2015
Hey ! Sigilmassasaurus returned ! This guy might be a different spinosauroid who lived alongside with Spinosaurus @ North Africa.
You might wanna see this

peerj.com/articles/1323/
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:icontrilobitecannibal:
TrilobiteCannibal Featured By Owner Mar 11, 2016  Hobbyist Traditional Artist
this is way older than that, this is 2011, he totally predicted the quadrupedal thing.
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:icongrisador:
grisador Featured By Owner Mar 16, 2016
If the Quedrupedal thing would be true; however so far it seems it isn't.
(2014 model proven to be a chimera after sigilmassasaurus & usage of different sized specimens)

However the Quadrupedal dinosaurs isn't a new thing; see the Xuanhanosaurus
hodarinundu.deviantart.com/art…
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:icontrilobitecannibal:
TrilobiteCannibal Featured By Owner Mar 16, 2016  Hobbyist Traditional Artist
I know that the 2014 discoveries are dubious, and that you can't mention them without people showing up to tell you how dubious, but still it's amazing he could predict that :)
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:icongrisador:
grisador Featured By Owner Mar 16, 2016
None the less; very true :nod: ; although as I wrote the Quadrupedal dino stuff is up since 2002.
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:icontrilobitecannibal:
TrilobiteCannibal Featured By Owner Mar 16, 2016  Hobbyist Traditional Artist
Yeah. I had never heard of the idea Xuanhanosaurus was quadrupedal before, which is kinda awesome.
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:icongrisador:
grisador Featured By Owner Mar 29, 2016
It is interesting indeed; but it 'was' thought to be a quadruped. but now it's certain it was a strict biped; just like spinosaurus. :nod:
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:icontrilobitecannibal:
TrilobiteCannibal Featured By Owner Mar 29, 2016  Hobbyist Traditional Artist
okay, still think spino was only semi bipedal, maybe walking bipedaly almost entirely, but occainally resting with his knuckles supporting a minor amount of wait...?
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(1 Reply)
:iconmafon:
Mafon Featured By Owner Jun 14, 2015
Neat-o.
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:iconkaprosuchusdragon:
KaprosuchusDragon Featured By Owner Apr 19, 2015  Hobbyist Digital Artist
well you not wacky now xD
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:iconvaleriolete:
Valeriolete Featured By Owner Mar 29, 2015
That seems pretty likely.
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:iconbaryminer:
BaryMiner Featured By Owner Mar 28, 2015  Student Traditional Artist
Looking at todays spino, you were pretty close
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:icongrisador:
grisador Featured By Owner Feb 27, 2015
The Times Spinosaur accapted as a Predator not a Always Beaten-Lesser Creature.... Good Times !
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:icontarbano:
tarbano Featured By Owner Nov 19, 2014
This is hilarious in hindsight
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:iconguyverman:
Guyverman Featured By Owner Oct 25, 2014
They recently prooved the animal was a quadraped.
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:iconrodrigo-vega:
Rodrigo-Vega Featured By Owner Nov 13, 2014  Professional General Artist
Yup, and I made an image about the latest restoration.
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:iconacepredator:
acepredator Featured By Owner Nov 25, 2014
But it has been disproved, even with short legs.

This thing would kill itself it it tried to walk on its knuckles.
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:iconrodrigo-vega:
Rodrigo-Vega Featured By Owner Dec 9, 2014  Professional General Artist
Not quite. It has been -disputed- but it's still the most current posture theory. Worst case scenario it would get -tired- of walking on it's nuckles, lest it has its brain inside it's wrists I'm pretty sure it would not-kill- itself. Probably it needn't a lot of walking at all, and spent most of it's time with most of it's body in water or just laid on the shore.
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:iconacepredator:
acepredator Featured By Owner Dec 9, 2014
It wouldn't be on land most of the time, but the worst case is it decapitating itself with its shoulder blades.
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:iconrodrigo-vega:
Rodrigo-Vega Featured By Owner Dec 10, 2014  Professional General Artist
Shoulder blades dont point at the neck at all and other large dinosaurs do not have that problem either. There might be some "evolution-lag" with the wrist not being as properly developed as in other large quadrupeds, but thats about it, nothing wrong with the arms or shoulders.
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:iconacepredator:
acepredator Featured By Owner Edited Dec 10, 2014
Nope, this thing definitely wasn't a quadruped and most palaeontologists would agree.

Yes but none of those other dinosaurs are theropods.

And there are other reasons:
-the knuckles do not touch the ground the right way for it to walk.
-the shoulders do not move in a way that allows this thing to walk on its knuckles.
-The arms are unable to bear its weight.
-the centre of balance was farther back than on other theropods making quadrupedal locomotion unnecessary.

I rest my case.
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:iconjust-a-2nd:
just-a-2nd Featured By Owner Sep 14, 2014
You must be feeling pretty proud. Congrats on nailing it.
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:icontrisdino:
trisdino Featured By Owner Sep 18, 2014
And then it was disproven again, oh well.
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:iconjeda45:
Jeda45 Featured By Owner Oct 21, 2014
Not disproven: rather, cast into doubt.
While it was argued against, it seems fairly likely Spinosaurus did have abnormally small hind legs after all, and in the absence of much unambiguous forelimb material it's hard to say for certain right now.
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:icongeotrixqueen:
GeotrixQueen Featured By Owner Dec 4, 2014  Student General Artist
Honestly, I'm calling BS on the whole find until another fossil is found. How do we know this wasn't a growth pattern seen in juveniles, since the skeleton is from an immature adolescent?

How do we know it wasn't a genetic defect?

Jumping to conclusions bites everybody in the ass.


And don't get me started on the idiots that tried to make T-Rex's bite force strong enough to crush diamond.
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:iconjeda45:
Jeda45 Featured By Owner Dec 4, 2014
This is actually the second specimen to preserve the short legs--Stromer found another partial skeleton, known as "Spinosaurus B". Sadly it was destroyed in WWII like the original remains, and later researchers considered it an indeterminate theropod, possibly the same thing as Sigilmassasaurus. Based on the new Spinosaurus specimen, though, we can tell that the original specimen, Spinosaurus B, and Sigilmassasaurus fossils are all different parts of the same species.
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:icongeotrixqueen:
GeotrixQueen Featured By Owner Dec 4, 2014  Student General Artist
Perhaps. Though it does beg to wonder why such an extreme physical shift from Suchomimus to Spinosaurus. And honestly, why was there a biological need for a "whale" dinosaur? I agree with Spino being the bear of the Saurian world, but to the extent of evolving to be nearly 100 percent water adapted doesn't make sense with creatures in that niche already existing in the first place.

I dunno......it's still fishy, in my opinion. (I made a funny. :D)
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:icontrisdino:
trisdino Featured By Owner Oct 22, 2014
At the time of me writing that, trusted people had released material strongly indicating that it was incorrect. That has now changed, yes, but again, the comment is over a month old.
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:iconwyzilla:
Wyzilla Featured By Owner Oct 28, 2014
Honestly we should have expected it from the 1940's onward. If you look at the drawing of the original Spinosaurus fossil in Germany, it's depicted with short hind limbs. It's still pictured with the incorrect skull and upright stance (vertical), but it's been there all along. Nobody seems to have ever looked at the old drawings- which they should have. The German specimen had complete legs IIRC and no Spinosaurus fossil until now had complete legs. Rather, they were based off Suchomimus.
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:iconiamadinosaurrarrr:
IAmADinosaurRARRR Featured By Owner Sep 12, 2014  Hobbyist General Artist
Looks like your "Wacky Theory" was correct ;)
 
www.youtube.com/watch?v=WoeA6x…
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:icontrisdino:
trisdino Featured By Owner Sep 18, 2014
And yet not, it turns out.
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:iconkaptain-kefiah:
Kaptain-Kefiah Featured By Owner Mar 1, 2014  Hobbyist Traditional Artist
mmmh, makes a lot of sense, after all Spinosaurus lived in Egypt(desert environment) and was a fish eater, fishes are naturally rich in fat so the hump would work for storing said fat, working like a mix between a heron, a camel and a grizzly bear.
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:iconsplicedbeast:
SplicedBeast Featured By Owner Feb 17, 2014  Hobbyist Digital Artist
Although a quadrupedal Spinosaurus may not be possible but it's interesting to see what if they walked on four legs.

The hump is very possible since it would look similar to bison.
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:iconmacawnivore:
macawnivore Featured By Owner Edited Sep 17, 2014  Hobbyist General Artist
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:iconsplicedbeast:
SplicedBeast Featured By Owner Sep 19, 2014  Hobbyist Digital Artist
Yeah I say, they are some interesting reads. :D
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:iconzaubererbruderasp:
ZaubererbruderASP Featured By Owner Jan 13, 2014  Hobbyist Traditional Artist
I heard that the hands of Theropods would make quadrupedal walking impossible because they cannot be rotated in this position.

Anyway, opposed to this, I drew a bison (which has similar spines to Spinosaurus) with a sail, but the humped Spinosaurus looks better :P
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:iconsaurophagus:
Saurophagus Featured By Owner Sep 12, 2013  Hobbyist General Artist
I think it's a muscular ridge, somewhere between hump and sail.
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:iconraven-amos:
raven-amos Featured By Owner Aug 21, 2013  Professional General Artist
I, too, am in the "sail is actually a hump" camp. Too robust to be just a sail!
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:icondeejaysart1993:
DeeJaysArt1993 Featured By Owner Aug 18, 2013  Hobbyist Artist
this actually make sence because most animal who have long head need to support that weight and the stuff we know about the spinosaur now the tail seems like its not to help support the weight if we look at the fossil of a tyrannosaur the tail is the right length to support it head another thing I remember another creature that uses a massive sail and they were guadrupedal.
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:iconspinoinwonderland:
SpinoInWonderland Featured By Owner Aug 18, 2013
It possibly has a hump(the other possibility, and the more likely one, is a ridge though), but I'm not so sure about quadrupedalism.

After all, Scott Hartman's most recent Spinosaurus skeletals seem to be built as such that the center of gravity is over the hips.
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:icondalaimalai123:
DALAIMALAI123 Featured By Owner Aug 18, 2013
P.S. I'm not saying that the arms are weak, I'm just saying that they're more designed for slashing and grabbing instead of walking.

But if they really are quadruped, my guess is that they walk like Hadrosaurs. Ya know, quadruped when walking but bipedal when running...
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:icondalaimalai123:
DALAIMALAI123 Featured By Owner Aug 18, 2013
I'm sorry, but I have to disagree with this theory. It's interesting, but I don't see why a Theropod should be quadruped.

Based on their hipbones, I think they seem better being bipedal. Not only that, they'd have an easier time catching terrestrial prey. Besides, the arms seem too weak to be able to support the front half of the body. Let alone run.
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:iconrodrigo-vega:
Rodrigo-Vega Featured By Owner Aug 19, 2013  Professional General Artist
I don't think Spinosaurus arms have ever been found... but correct me if I'm wrong.
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:icondalaimalai123:
DALAIMALAI123 Featured By Owner Aug 24, 2013
Well, what scientists did do was taking the skeletal structure of Baryonyx, make it larger, and add the neural spines to it's back.

Basically, by doing that, we actually get the closest image to how Spinosaurus (or any other kind of dinosaur) might have looked.

And you're right about the fact that we haven't discovered Spinosaurus arms. A real shame, isn't it? 
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:iconheavenlyodyssey:
HeavenlyOdyssey Featured By Owner Apr 15, 2013  Hobbyist General Artist
I have to say I've been a big fan of your work ever since I found you on DA, I love the way you not only mutate creatures, but you give them such a rich and whimsical background that they no longer are just flat pieces of art. Every detail is planned out and offers such a rich variety to the creatures from your imagination. You are definitely an inspiration for me as I have such a great time creating strange and wacky beasts of my own.
I always drift back to your page when I have a blank moment, and really I just wanted to say thank you for being an inspiration. Please keep up the wonderful work :-).
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:icondinobirdman:
DinoBirdMan Featured By Owner Jan 27, 2013  Student Artist
Good old humpy!;)
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:iconerfaningenia:
Erfaningenia Featured By Owner Aug 28, 2012
just like the one i drawn about 12 years ago!

[link]
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