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Sereno's Spinosaurus by Ashere Sereno's Spinosaurus by Ashere
I wrote an article for the Atlantic recently running down the history of Spinosaurus 2.0. Part of the research for it involved talking to Doctor Paul Sereno, one of those odd milestones that happen when you grow up reading about dinosaurs and then become a journalist. Over the course of the interview, Dr. Sereno and I spoke about quadrupedal postures and dietary habits in Spinosaurus. He suggested that Spinosaurus may potentially have rooted around in the muck for giant lungfish, an idea I found enchanting enough to illustrate. This one is resting momentarily on its hands as it probes for a meal. 

I'm still not totally convinced by the quadrupedal Spinosaurus, but I wanted to at least take a spin on it to see if I could draw it in a way I liked. 

 (You can read the piece here if you're so inclined: www.theatlantic.com/science/ar…)
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:icongeneralhelghast:
GeneralHelghast Featured By Owner Jun 15, 2016   General Artist
yeah I doubt that Spinosaurus was by any means a four-legged slow poke.
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:icontph-original:
TPH-Original Featured By Owner May 6, 2016  Hobbyist General Artist
Oh, look, a penny!
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:icongrisador:
grisador Featured By Owner Edited Apr 18, 2016
Very Nice work ! :nod:


Fortunately Quadrupedality's debunked :B
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:icons7alker117:
S7alker117 Featured By Owner Apr 11, 2016  Professional Writer
I'll guess the limbs, as they are, aren't really that well matched when compared with other theropods, hence the quadrupedal hypothesis? 

The bent finger position for the forelimbs does seem odd, although I am not a trained biologist to really comment. 
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:iconashere:
Ashere Featured By Owner Apr 11, 2016  Hobbyist Traditional Artist
Well, the problem is whether or not you think the reconstructed forelimbs limbs are accurate, since we don't actually have any fossils from them--they're largely based on Suchomimus and Irritator. So to some extent we're all just waiting until some better forelimbs turn up. 
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:icons7alker117:
S7alker117 Featured By Owner Apr 13, 2016  Professional Writer
Ah, I see the problem. In that case we do need a lot more evidence before something can be settled. It is a fascinating idea that the Spino could be quadrupedal or even aquatic, but more fossils need to be found. It won't be easy, though. As far as I can tell, Spinosaurus bones aren't the easiest to come about. 
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:icontitanlizard:
titanlizard Featured By Owner Apr 10, 2016
Why the nostril is in the antorbital fenestrae?
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:iconashere:
Ashere Featured By Owner Apr 10, 2016  Hobbyist Traditional Artist
My understanding was that the naris was significantly retracted, though since this was a dashed off sketch sans reference, I might have gotten the location a bit off. 
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:iconhublerdon:
HUBLERDON Featured By Owner Apr 10, 2016  Hobbyist General Artist
So, we're they fully quadrupedal, or just when resting?
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:iconashere:
Ashere Featured By Owner Apr 10, 2016  Hobbyist Traditional Artist
Hard to say. I personally have doubts about Spinosaurs being able to move around on their forelimbs, but a resting quadrapedal posture where the wait isn't resting fully on the forelimbs doesn't seem impossible. Tough to say, though. 
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:iconhublerdon:
HUBLERDON Featured By Owner Apr 10, 2016  Hobbyist General Artist
Were there legs really that short? They see, too small to really support the creature.
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:iconashere:
Ashere Featured By Owner Apr 10, 2016  Hobbyist Traditional Artist
Well, that's the bone (as it were) of contention. 
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:iconhublerdon:
HUBLERDON Featured By Owner Apr 11, 2016  Hobbyist General Artist
Maybe, as some say, Sereno's predictions were miscalculated, and the legs could've been slightly bigger. Still pretty small, but something that could support that animal's size.
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:iconashere:
Ashere Featured By Owner Apr 11, 2016  Hobbyist Traditional Artist
The legs probably could support an animal of that size--its the balance that's an issue. And life posture probably had quite a lot of effect on that. (How did Spinosaurus hold its head? Did it walk/waddle like a pangolin, with claws almost but not quite touching the ground?) We just don't know. 
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:iconhublerdon:
HUBLERDON Featured By Owner Apr 12, 2016  Hobbyist General Artist
Pangolin sounds reasonable. Might have tucked its neck back, like a bird.
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:iconfredthedinosaurman:
FredtheDinosaurman Featured By Owner Apr 9, 2016  Student General Artist
Awesome work!
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:iconashere:
Ashere Featured By Owner Apr 9, 2016  Hobbyist Traditional Artist
Thanks! I'm thinking of painting it at some point--maybe like a mix between a green heron and a crocodile? 
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:iconfredthedinosaurman:
FredtheDinosaurman Featured By Owner Apr 15, 2016  Student General Artist
Sounds great man. Head markings of a heron and body of a croc. Cant wait to see
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:iconhelixdude:
Helixdude Featured By Owner Apr 10, 2016  Hobbyist Traditional Artist
Or a grizzly bear and a crocodile.
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