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October 16, 2012
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:iconashere:
One of the largest and most powerful predators of the cretaceous oceans, with coloration that's a mix between the three great modern marine predators: Orca, Great White Sharks, and Leopard Seals.
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:iconhenrik9470:
~henrik9470 Mar 8, 2013  Professional General Artist
the tail yet again perfect!
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:iconmatrixdragondavid:
~MatrixDragondavid Nov 29, 2012  Student Artist
So has the Icthyosaur-like tail been accepted or otherwise confirmed by Paleontologists to have been a feature on all Mosasaurs? I forget which species it was that was first observed to have it but I wouldn't think that all of them had it.

If they did though, I would suppose it to be convergent evolution to occupy the same or similar ecological niche to the then-extinct Icthyosaurs and, I believe, marine crocodiles (Geosaurus, Dakosaurus, Plesiosuchus, etc.).

I don't like the aesthetics of it to be honest and, on such large Mosasaurs as Tylosaurus, I would think to be absent. It seems to me like it'd be present in the smaller, faster moving Mosasaurs and/or the most advanced species appearing at the very end of the Cretaceous such as Plotosaurus.

If anything I've said is inaccurate, please correct me.
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:iconashere:
~Ashere Dec 1, 2012  Hobbyist Traditional Artist
It hasn't, no. Platecarpus is suspected to have had it, though, and Platecarpus was a pretty large mosasaur. And while you're right that one genus having a feature like that doesn't dictate the other's, to my mind the prevalence of that form of locomotion in large sea going animals (of both the Mesozoic and now) leads me to think it's as decent a guess as any.

I'm actually not huge on the aesthetics myself, and you make a good point that it may have been a new feature. But then again, maybe not. Until more is published, we won't know.

Thanks for the comment. :)
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:iconmatrixdragondavid:
~MatrixDragondavid Dec 22, 2012  Student Artist
No problem, thank you for the feedback.
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:icongeekspace:
Man alive, your eye for marine-life coloration is spot on. The transitional mottling on this guy's misdection pretty much cinches that scheme.
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:iconashere:
~Ashere Oct 30, 2012  Hobbyist Traditional Artist
I've been spending a good fifteen minutes on Google Image search before each color job, looking for inspiration. Thus far it seems to be paying off.

We'll see, though. I have a Xiphactinus and a Protosphyraena I have to do soon, as well as a Basilosaurus, and I'm going to have to come up with decent color schemes for all three.
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:icongeekspace:
A pseudo-proto-swordfish, the Whale that was a Lizard(TM) and veryone's favorite roided-up tuna/piranha fusion? Color me stoked.

Hmm, possible sources:

Xiphactinus- dorado, barracuda, porbeagle shark?
Protosphyraena- black marlin?
Basilosaurus- common dolphin, bottlenose whale? Haven't seen too many dark-tone Basilosaurs.
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:iconpilsator:
~pilsator Oct 30, 2012  Hobbyist Traditional Artist
Wonderful work!
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:iconthemorlock:
~TheMorlock Oct 25, 2012  Student General Artist
Awesome!
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:iconkamaelion:
The mighty Tylosaurus, my favorite "dinosaur". I can see the majestic swaying from this beast as it moves in to its prey
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