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Extinct Animal Questions
Topic Started: Nov 26 2013, 10:24 PM (193,347 Views)
BossMan, Jake
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Son of God

Yeah I'm gonna throw out Coelurus.
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Acinonyx Jubatus
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I AM THE UNSHRINKWRAPPER!

Does anyone know where I can find a full-body skeletal reconstruction of Kaiwhekea katiki?
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Incinerox
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Āeksiot Zaldrīzoti

Annoyingly, I can't find you a full skeleton. It's supposed to be near complete so hopefully someone'll get round to it.

I can provide you with something to work with though. Here's a skull:
https://plesiosauria.com/kaiwhekea.jpg

And the skeletals of related taxa:
http://1.bp.blogspot.com/-N-GQwBEI5ms/UYyBTEwnetI/AAAAAAAAoNU/DjKR_H4o1Cg/s1600/skeletal_recon_by_riechstag-d3c82tr.jpg
http://4.bp.blogspot.com/--dYyPbN8qPk/Us9iY7Fm8qI/AAAAAAAAJC0/an_X2-WBSsU/s1600/Screen+shot+2014-01-09+at+6.59.52+PM.png
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Acinonyx Jubatus
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I AM THE UNSHRINKWRAPPER!

Thank you, but wasn't it supposed to be a Leptocleidid? I'm looking for something to base the proportions off of. Tatenectes and Aristonectes simply do not work for that. Perhaps Nichollssaura or Thililua?
Edited by Acinonyx Jubatus, Oct 20 2015, 01:32 PM.
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Incinerox
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Āeksiot Zaldrīzoti

Well no.

For a start, Nichollssaura was indeed a leptoclidid. However, Thililua was reclassified as a polycotylid in 2011. Nowhere near what you want at all, and its proportions and skull shape should have made that clear right from the start.

On the other hand, he same analysis that put Thililua as a polycotylid in 2011 also kept Kaiwhekea and Aristonectes together as a subfamily of elasmosaurids, the aristonectinae.

Tatenectes might be a cryptoclidid OR an aristonectine, so if you're really concerned, ignore it, but with the current data, it should be good enough for a restoration of an aristonectine anyway.

If you REALLY want me to, I could try and come up with a crude skeletal using a mixture of relevant taxa myself if it'd make a difference.
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Zhadow
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What's the largest known mammal from the Cretaceous? and is Gargantuavis the largest mesozoic bird?
-Thanks
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Incinerox
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1) As far as I'm aware, it's still Repenomamus robustus, unless something's beaten it since and I've missed something.

2) Yes. Seems like it. Again, correct me if I've missed something.
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Furka
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There was that recently discovered mammal from Madagascar, but I don't remember how big exactly it was, so it might change nothing ...
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Incinerox
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Nah, Repenomamus was estimated at a good 11lbs heavier than Vintana, the mammal you're thinking of.
Edited by Incinerox, Oct 20 2015, 05:15 PM.
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heliosphoros
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Oh cool, we actually have confirmation of the size difference between Repenomamus and Vintana. It's been terribly unclear.

There's also a "beaver-sized" ptilodontoidean from Appalachia:

https://gsa.confex.com/gsa/2014SE/webprogram/Paper235341.html

There's hearsay about a larger Repenomamus relatively, probably twice the size, though there hasn't been any official study on it AFAIK.

As for Gargantuavis, that's assuming it isn't a pterosaur, like many people have suggested.
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Yi Qi
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heliosphoros
Oct 20 2015, 05:56 PM
As for Gargantuavis, that's assuming it isn't a pterosaur, like many people have suggested.
I tought most recent studies placed it near Patagoperyx, or am i mistaken?
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Incinerox
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heliosphoros
Oct 20 2015, 05:56 PM
As for Gargantuavis, that's assuming it isn't a pterosaur, like many people have suggested.
Aren't you thinking of Samrukia?
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Paleodude
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ex-Krampus

Does anybody know any good starter material for Paleoart, any help is super appreciated!
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heliosphoros
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Yi Qi
Oct 20 2015, 07:40 PM
heliosphoros
Oct 20 2015, 05:56 PM
As for Gargantuavis, that's assuming it isn't a pterosaur, like many people have suggested.
I tought most recent studies placed it near Patagoperyx, or am i mistaken?


Not that I'm aware of.

Incinerox
Oct 20 2015, 08:00 PM
heliosphoros
Oct 20 2015, 05:56 PM
As for Gargantuavis, that's assuming it isn't a pterosaur, like many people have suggested.
Aren't you thinking of Samrukia?


The same author - and several others - have also suggested Gargantuavis to be an azhdarchid.
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Trichechus
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Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn

Paleodude
Oct 20 2015, 08:03 PM
Does anybody know any good starter material for Paleoart, any help is super appreciated!
Skeletals, especially Scott Hartman's, are essential for getting the anatomy right.
Edited by Trichechus, Oct 20 2015, 08:36 PM.
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