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Paluxysaurus (Sauroposeidon?) by Steveoc86 Paluxysaurus (Sauroposeidon?) by Steveoc86
This is a tentative reconstruction of Paluxysaurus jonesi. All the material in this reconstruction comes from Jones Ranch in Texas. A recent paper (D'Emic 2012) has referred it to Sauroposeidon proteles, which is the reason I decided to try and do a skeletal reconstruction. I'm not certain whether Paluxysaurus jonesi should be referred to Sauroposeidon proteles just yet. They could be closely related and Paluxysaurus could therefore be a good starting point when restoring Sauroposeidon.

Paluxysaurus is known from multiple fragmentary individuals, which means that there is a lot of uncertainty in this reconstruction. That said, it should hopefully give some idea what Paluxysaurus might have looked like.

If Paluxysaurus is closely related to Sauroposeidon , then it suggests that the high arching nasal (like those seen in Brachiosaurus or Giraffatitan) that is usually restored for Sauroposeidon isn't correct. The skull is only known from the nasal and maxillia. Without better images of the material I can't be certain how long the snoat is, or where the tooth positions are.

More vertebrae are known, they just aren’t illustrated in the description due to them still being prepared. Most of the vertebrae that are illustrated are either incomplete or distorted and I've had to try and restore them. I have assumed 13 cervicals and 12 dorsals. Cervical 9 is illustrated in the description but is only shown in top view so I have had to guess what it looks like in side view.

What's described as the first dorsal is quite small and probably comes from a smaller individual. I scaled it up to match the articulated third and fourth dorsals. The posterior dorsal vertebra has quite a short centrum. If it does belong to Paluxysaurus then it suggests that the dorsal vertebrae get shorter towards the sacrum like they do in brachiosaurs. Based on just how short the centrum is, I have assumed that it is the last dorsal.

The two rib fragments were only illustrated in front view and I'm not certain exactly where they go.

I used Scott Hartman's Brachiosaur tail as reference to help estimate the position of the illustrated caudal vertebrae within the tail. With the exception of two vertebra I have assumed that all the illustrated caudals come from a similar sized individual. These two caudals seem to be from a smaller individual, they have a skewed appearance which I'm not sure is distortion or actual morphology; they have been ignored in this diagram.

I have assumed that the limb material is from a similar sized individual as the articulated 3rd and 4th dorsals. The radus and ulna are probably distorted or have a pathological condition. I probably should attempt to correct for this but I have left them close to their shape in the fossils; these bones corrected would probably raise the shoulders a bit.

Three metacarpals are illustrated in the description, only one (that might represent number IV) was found near the other limb elements. I couldn't figure out how to get the known metacarpals to fit together so I just illustrated a fairly generic sauropod manus around metacarpal IV. I have illustrated a more basal manus like those of brachiosaurs and camarasaurs, which still have obvious finger bones. It could be that Paluxysaurus had the more derived condition in which the metacarpals are touching the ground and the finger bones are tiny stubs, like seen in Malawisaurus.

D'Emic redrescribes the cloverly sauropod material and refers it to Sauroposeidon. I haven't included Cloverly material yet, I do suspect the the Cloverly material and the 'Paluxysaurus' materal represent similar animals. I still not sure that they should be lumped in to the same species yet, I prefer it when specimens are treated separately.

Update 11/07/2013: Illustrated the hypothetical missing bones.

Update 02/10/2013: Added in the pelvic material described by Winkler et al. 2013.
Currently I'm not quite certain on the transition between the sacral vertebra and the caudal vertebra.
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Paleo-King Featured By Owner 4 days ago  Professional Traditional Artist
My Paluxysaurus is up now: Paluxysaurus jonesi hi-fi skeletals

Take a look, tell me what you think.
bricksmashtv Featured By Owner May 20, 2016  Hobbyist Traditional Artist
What's the citation for Winkler, 2013?
bricksmashtv Featured By Owner Aug 9, 2016  Hobbyist Traditional Artist
nvm found it ;)
Phillip2001 Featured By Owner May 7, 2016  Hobbyist Traditional Artist
Would it be okay if I your picture in one of my Youtube - would use videos, you would then link in the description and your Deviantart - would call account?
Steveoc86 Featured By Owner May 8, 2016
Sure! You can use this picture if you want.
bhut Featured By Owner Jun 12, 2014
This is a very remarkable reconstruction!
TitanoRex Featured By Owner Jun 5, 2013
Im not sold that Puluxysaurus is a juvenile Sauroposeidon
Paleo-King Featured By Owner Oct 14, 2013  Professional Traditional Artist
Neither am I... although the theory that they are both somphospondyli rather than brachiosaurs is looking a bit tastier.... this does NOT mean they were like Euhelopus, BTW. They look closest to Chubutisaurus out of all Somphospondyli, and that's way more basal than Euhelopus, no bifid spines either.
DinoBirdMan Featured By Owner May 10, 2013  Student Artist
This is really cool for the ultimate dinosaur!:D
DeinonychusEmpire Featured By Owner May 8, 2013  Hobbyist General Artist
I've stepped in this creature's footprints.
pilsator Featured By Owner Sep 3, 2012  Hobbyist Traditional Artist
EmperorDinobot Featured By Owner Sep 2, 2012
Those cervicals are incredibly long. Jesus. Maybe not as ridiculous as Erketu, but daaayum! On what grounds was it referred to Sauroposeidon?
Steveoc86 Featured By Owner Sep 3, 2012
The paper that referres Sauroposeidon to Paluxysaurus is D'Emic, M.D. and B.Z. Foreman, B.Z. (2012). "The beginning of the sauropod dinosaur hiatus in North America'' I havn't got a copy of it yet so I don't know the reasons for the referral.
EmperorDinobot Featured By Owner Sep 3, 2012
These animals all look so different that they actually look alike.
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Submitted on
September 2, 2012
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