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About Varied / Hobbyist Zach A.Male/United States Recent Activity
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Sauroposeidon painting by palaeozoologist Sauroposeidon painting :iconpalaeozoologist:palaeozoologist 11 7 Sauroposeidon multiview skeletal by palaeozoologist Sauroposeidon multiview skeletal :iconpalaeozoologist:palaeozoologist 20 27 Euhelopus with raised shoulders by palaeozoologist Euhelopus with raised shoulders :iconpalaeozoologist:palaeozoologist 29 9 Euhelopus multiple-view skeletal reconstruction by palaeozoologist Euhelopus multiple-view skeletal reconstruction :iconpalaeozoologist:palaeozoologist 23 19 Deinocheirus skeletal by palaeozoologist Deinocheirus skeletal :iconpalaeozoologist:palaeozoologist 46 3 Yi qi by palaeozoologist Yi qi :iconpalaeozoologist:palaeozoologist 33 2 Dreadnoughtus  multiview skeletal by palaeozoologist Dreadnoughtus multiview skeletal :iconpalaeozoologist:palaeozoologist 37 22 Rebbachisaurus skeletal by palaeozoologist Rebbachisaurus skeletal :iconpalaeozoologist:palaeozoologist 26 18 Limaysaurus skeletal by palaeozoologist Limaysaurus skeletal :iconpalaeozoologist:palaeozoologist 41 12 Amphicoelias dorsals comparison by palaeozoologist Amphicoelias dorsals comparison :iconpalaeozoologist:palaeozoologist 16 7 Alamosaurus (in color) by palaeozoologist Alamosaurus (in color) :iconpalaeozoologist:palaeozoologist 43 9 Atlasaurus drawing by palaeozoologist Atlasaurus drawing :iconpalaeozoologist:palaeozoologist 44 12 Alamosaurus (small scales) by palaeozoologist Alamosaurus (small scales) :iconpalaeozoologist:palaeozoologist 20 2 Alamosaurus drawing with croc scales by palaeozoologist Alamosaurus drawing with croc scales :iconpalaeozoologist:palaeozoologist 24 3 Argentinosaurus skeletal by palaeozoologist Argentinosaurus skeletal :iconpalaeozoologist:palaeozoologist 50 37 Alamosaurus skeletal by palaeozoologist Alamosaurus skeletal :iconpalaeozoologist:palaeozoologist 54 28

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Brachiosaurus Sketch by Lythroversor Brachiosaurus Sketch :iconlythroversor:Lythroversor 167 28 Talarurus, THE EMPEROR OF DINOSAURS by ZEGH8578 Talarurus, THE EMPEROR OF DINOSAURS :iconzegh8578:ZEGH8578 104 27 Ruyangosaurus giganteus skeletal reconstruction. by randomdinos Ruyangosaurus giganteus skeletal reconstruction. :iconrandomdinos:randomdinos 63 50 Playing with Genetics by Eurwentala Playing with Genetics :iconeurwentala:Eurwentala 715 269 Daxiatian binglingi by yty2000 Daxiatian binglingi :iconyty2000:yty2000 31 8 Nomor Condor by speciata Nomor Condor :iconspeciata:speciata 101 12 Island sauropods by Hyrotrioskjan Island sauropods :iconhyrotrioskjan:Hyrotrioskjan 122 22 Island dinosaur size chart by Hyrotrioskjan Island dinosaur size chart :iconhyrotrioskjan:Hyrotrioskjan 516 149 Shestakovo by Olorotitan Shestakovo :iconolorotitan:Olorotitan 346 42 Sharipovo by Olorotitan Sharipovo :iconolorotitan:Olorotitan 466 26 Titanosaur by Olorotitan Titanosaur :iconolorotitan:Olorotitan 5,241 375 Olorotitan by Olorotitan Olorotitan :iconolorotitan:Olorotitan 58 8 Elegant Golden Phoenix by pilsator Elegant Golden Phoenix :iconpilsator:pilsator 89 8 Europasaurus by Olorotitan Europasaurus :iconolorotitan:Olorotitan 415 30 Spines, Thorns, and Spikes by Qilong Spines, Thorns, and Spikes :iconqilong:Qilong 45 29

Activity


Sauroposeidon painting
...with Acrocanthosaurus (contemporaneous) and Homo sapiens (non-contemporaneous) for scale.

Edit: Forgot to mention I use Scott Hartman's (www.skeletaldrawing.com/) skeletal for reference for the Acrocanthosaurus.
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Sauroposeidon multiview skeletal
Well, I finally finished this. I agree with D'Emic et al (2012) that Paluxysaurus is really the same as Sauroposeidon, and so offer a composite restoration here. The Sauroposeidon material from the holotype is only cervicals 5-8. The overlapping cervicals in Paluxysaurus are nearly identical, when accounting for size, ontogeny and individual variation (the Paluxysaurus material is only about 60% the size of Sauroposeidon). Recent phylogenetic work by D'Emic and others consistently show the two as sister taxa, and also consistently as non-brachiosaurid somphospondylan titanosauriformes. The largest individuals are probably about 30% smaller than the largest titanosaurs, so Sauroposeidon is probably no longer in the top ten list of largest sauropod taxa (and maybe not even in the top 20).

In the above reconstruction, only the lateral (side-view) is done 'rigorously' (exception: dorsal view of ilia/sacrum is rigorous as well), with non-preserved or undescribed/non-photographed material with grey fill and preserved/photographed material in white. Scale bar is 1 meter.

Edit [updated 8/27/17]: Made some updates to the scaling of the forelimbs, per suggestions by Steveoc and to the soft tissue outline per suggestions by ijreid.

References:

D. A. Winkler, M. J. Polcyn and L. L. Jacobs New sauropod dinosaur material from Jones Ranch: a large Comanchean
nonmammalian tetrapod from Texas. Earth and Environmental Science Transactions of the Royal Society of Edinburgh,
Available on CJO (2013) doi:10.1017/S1755691013000418

J. O. Farlow1, M. O’Brien2, G. J. Kuban3, B. F. Dattilo1, K. T. Bates4, P. L.
Falkingham5, L. Piñuela6, A. Rose1, A. Freels7, C. Kumagai1, C. Libben1, J. Smith1 and J. Whitcraft1. (2012) Dinosaur Tracksites of the Paluxy River Valley (Glen Rose Formation, Lower Cretaceous), Dinosaur Valley State Park, Somervell County, Texas. Actas de V Jornadas Internacionales sobre Paleontología de Dinosaurios y su Entorno

Michael D. D’Emic & Brady Z. Foreman (2012): The beginning of the sauropod dinosaur hiatus in North
America: insights from the Lower Cretaceous Cloverly Formation of Wyoming, Journal of Vertebrate Paleontology, 32:4,
883-902

D’Emic, M. D. (2012). Revision of the sauropod dinosaurs of the Early Cretaceous Trinity Group, southern USA, with the description of a new genus. Journal of Systematic Palaeontology.

Wedel, M. J., Cifelli, R. L. & Sanders, R. K. 2000. Sauroposeidon proteles, a new sauropod from the Early Cretaceous of Oklahoma. Journal of Vertebrate Paleontology 20 (1), 109–14.
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Due to recent new events, this hypothesis has come up again. My initial thoughts over at my (mostly dormant) blog,  Part 1 of 2: palaeozoographer.wordpress.com…

I welcome comments as always, but would prefer them over there than over here. :)

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Zach A.
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:iconbricksmashtv:
bricksmashtv Featured By Owner May 21, 2016  Hobbyist General Artist
Zach, I'm currently writing a paper on what I believe is a new Titanosaur (yay!) that I want to get published into PeerJ, and I need two reviewers. Would you like to be one? I've already come up with the name, entered it into Zoobank, and wrote out most of the paper's base already. The specimen isn't all too impressive, but I think it's worthy enough of a new genus. Besides, you could always end up being a co-author if it helps you get your name out there.
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:iconpalaeozoologist:
palaeozoologist Featured By Owner May 23, 2016  Hobbyist General Artist
Unfortunately, I do not have a lot of spare time at present, so not sure I could provide a formal review, but if you intend to submit it to the preprints, I would be willing to make some short comments at that time. Same issue with co-authoring, unfortunately do not have much time for that either. It would depend on what exact kind of involvement would be needed.
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:iconbricksmashtv:
bricksmashtv Featured By Owner May 23, 2016  Hobbyist General Artist
Oh, that's okay. I plan on a full published peer-reviewed article. Do you know anyone else who would be willing to review for me (I've already contacted Nima, so anyone else)?
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:iconpalaeozoologist:
palaeozoologist Featured By Owner May 29, 2016  Hobbyist General Artist
I know that anyone I would suggest are also quite busy, so I'm afraid I'm not of much help. Sorry :(
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(1 Reply)
:iconaspidel:
aspidel Featured By Owner Mar 24, 2016  Hobbyist Traditional Artist
You have some nice skeletals.
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:iconterizinosaurus:
Terizinosaurus Featured By Owner Aug 20, 2015
Nice  !!! :)
I like Yi qi  !!! :love:


I am   your   Watcher    !!!  :D :D :D
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:iconpalaeozoologist:
palaeozoologist Featured By Owner Aug 27, 2015  Hobbyist General Artist
Thanks for the watch! :)
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:iconterizinosaurus:
Terizinosaurus Featured By Owner Aug 28, 2015
:)
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:iconterizinosaurus:
Terizinosaurus Featured By Owner Aug 20, 2015
Nice !!!
I like  Yi  qi ! :love:


I am  your   Watcher   !  :D (Big Grin) :D (Big Grin) :D (Big Grin) 
Reply
:icontraheripteryx:
Traheripteryx Featured By Owner Mar 1, 2015  Hobbyist General Artist
Dude, you have some cool skeletals! :D
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