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What a Nose! by Qilong What a Nose! by Qilong
Eurhinosaurus's nose is not a defect, or a feature resulting from too short of a jaw (all the teeth are there, numerous as they are, plentiful in their tininess). Instead, like the swordfish (a tuna-like marlin relative), or the sawfish (a relative of sharks), the snout was greatly elongated, and it may have served a sensory rather than predatory function. Like other parvipelvian ichthyosaurs, the orbits are ridiculously huge and round, the snout shallow and pointy, and it was probably a piscivore. A relatively small inner aperture of the scleral ring implies the eyes were adapted to daylight, and thus the animal was probably a near-surface, diurnal predator. It lived during the Early Jurassic of western Europe, from England to Switzerland.

Edit:

Turns out the jaw was a bit wrong, and the mandibular symphysis too long, so this has been fixed, as well as adding in a dorsal profile to the palate in the skull's dorsal (top) view, with shading to pull focus towards the external skull bones.
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:icondinohunter58:
DinoHunter58 Featured By Owner Dec 11, 2013
Beautifully done :)
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:iconkazuma27:
Kazuma27 Featured By Owner Nov 11, 2013  Hobbyist General Artist
Know this guy since my childhood (thanks to Burian's art, mainly) but it's the first time i see a picture of his skull... Why a reptile should have evolved a snout like that?
Very swordfish-esque indeed!
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:iconcommonhousegecko:
CommonHouseGecko Featured By Owner Sep 8, 2013
So... an Eurhinosaurus swims into a bar...
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:iconqilong:
Qilong Featured By Owner Sep 8, 2013
OWWWW! (I see what you did there.)
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:iconpaleo-reptiles:
Paleo-reptiles Featured By Owner May 8, 2013
Eurhinosaurus is my favorite Ichthyosaur....but unfortunately, artists do not drew it very much....once, I give Scott Hartman suggestion of drawing of Eurhinosaurus but he did not have time.....your art about Eurhinosaurus make me very happy...but please delete deviant art sigh and add your sigh beside picture.....I saw a picture about skull of Eurhinosaurus longirostris in pdf paper(by Michael W. Maisch and Andreas T. Matzk/ 2000/ Stuttgarter Beitrage zu Naturkunde, Serie B)...if you tell me your Email, I can send it to your Eamil.

my email:

keyvan_1878@yahoo.com
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:iconqilong:
Qilong Featured By Owner May 8, 2013
I suspect you actually sent those ideas to ME, as I still have these emails from you. It just took me a while to get around to it. It is a pretty cool ichthyosaur.
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:iconpilsator:
pilsator Featured By Owner Apr 30, 2013  Hobbyist Traditional Artist
Ichthyosaurs, huh? More of that, Jaime!
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:iconqilong:
Qilong Featured By Owner May 1, 2013
Depends on which ones are more interesting to illustrate. I usually pick ones which are interesting in their own right, or have some quality or novelty which is useful to discuss. Eurhinosaurus has the mismatched jaws, the extreme overbit and suggestions for ram suction/benthic feeding which can be examined. But most opthalmosaurid ichthyosaurs are pretty much the same in the skull. There are toothless ichthyosaurs like Mixosaurus, there are taxa with blunter teeth like Utatsusaurus, and things like Macgowania or Suevoleviathan with their blunt noses, but there's not much I can say that hasn't been said. This was done primarily because its on my backlog of interesting variation among vertebrate skulls I've not done but was suggested on my blog.
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:iconhyrotrioskjan:
Hyrotrioskjan Featured By Owner Apr 30, 2013  Professional General Artist
Wonderful reconstruction :thumbsup:
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:iconthomcomstock:
thomcomstock Featured By Owner Apr 29, 2013  Hobbyist Traditional Artist
Very fine work!
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:iconcommonhousegecko:
CommonHouseGecko Featured By Owner Sep 8, 2013
Finer than Eurhinosaurus' snout if you ask me.
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:iconqilong:
Qilong Featured By Owner Apr 29, 2013
Thanks!
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:iconfragillimus335:
Fragillimus335 Featured By Owner Apr 29, 2013  Hobbyist General Artist
How did that thing eat??? Perhaps it combed the hair of larger, more dapper ichthyosaurs in exchange for leftovers!
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:iconqilong:
Qilong Featured By Owner Apr 29, 2013
I think there was a fair amount of ram sunction going on, actually. The palate is broad and flat, and relatively filled in, with small slots for jaw muscles. This seems useful when you're primary feeding style is used while *opening* your mouth, not closing it. In this manner, the nose's length doesn't matter. So it might be interesting to consider what it could eat if its jaw gape isn't that long. I can imagine, for example, a benthic feeder, sucking in clams and whatnot, occasionally probing mud and silt for food. It's an idea.
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:iconprimevalraptor:
PrimevalRaptor Featured By Owner May 3, 2013  Hobbyist Digital Artist
Well, that would be interesting to see illustrated...
Mind, if I use this skull reconstruction as reference?
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:iconqilong:
Qilong Featured By Owner May 3, 2013
Wth attrbuton, yes.
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:iconprimevalraptor:
PrimevalRaptor Featured By Owner May 6, 2013  Hobbyist Digital Artist
[link]
Well, thanks for the reference. ^^
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:iconprimevalraptor:
PrimevalRaptor Featured By Owner May 3, 2013  Hobbyist Digital Artist
Okay, thanks. ^^
And of course I will give credit.
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:iconorionide5:
Orionide5 Featured By Owner Apr 29, 2013
That is incredibly fascinating. I never would of guessed the skull was a reptile's from looking at it. I can only imagine what the snout did: perhaps it was a vibration sensor, or covered with scent pits.
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:iconqilong:
Qilong Featured By Owner Apr 29, 2013
No evidence for sensory pits. It may, like dolphins, have used its teeth to sense things.
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