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About Digital Art / Professional Core Member Scott HartmanMale/United States Recent Activity
Deviant for 11 Years
1 Month Core Membership
Statistics 227 Deviations 4,510 Comments 385,656 Pageviews

Newest Deviations

Poposaurus gracilis sauntering along by ScottHartman Poposaurus gracilis sauntering along :iconscotthartman:ScottHartman 195 33 Teleocrater by ScottHartman Teleocrater :iconscotthartman:ScottHartman 206 46 Confuciusornis by ScottHartman Confuciusornis :iconscotthartman:ScottHartman 162 53 Ixalerpeton by ScottHartman Ixalerpeton :iconscotthartman:ScottHartman 157 27 Dawn 'bird' by ScottHartman Dawn 'bird' :iconscotthartman:ScottHartman 146 13 Jinfengopteryx elegans - the golden phoenix by ScottHartman Jinfengopteryx elegans - the golden phoenix :iconscotthartman:ScottHartman 136 22 Chinese Hunter by ScottHartman Chinese Hunter :iconscotthartman:ScottHartman 150 20 The not-so-gracile Leptoceratops by ScottHartman The not-so-gracile Leptoceratops :iconscotthartman:ScottHartman 146 39 Paleorhinus - not a croc! by ScottHartman Paleorhinus - not a croc! :iconscotthartman:ScottHartman 172 53 A big ichthyosaur by ScottHartman A big ichthyosaur :iconscotthartman:ScottHartman 166 70 Finally, an aetosaur! by ScottHartman Finally, an aetosaur! :iconscotthartman:ScottHartman 194 36 Granddaddy of the armored dinosaurs by ScottHartman Granddaddy of the armored dinosaurs :iconscotthartman:ScottHartman 176 40 Huayangosaurus - a primitive little stegosaur by ScottHartman Huayangosaurus - a primitive little stegosaur :iconscotthartman:ScottHartman 146 22 La Rioja's ponderous biped by ScottHartman La Rioja's ponderous biped :iconscotthartman:ScottHartman 131 41 Shunosaurus, a primitive club-tailed sauropod by ScottHartman Shunosaurus, a primitive club-tailed sauropod :iconscotthartman:ScottHartman 155 80 Marasuchus - rabbit-croc by ScottHartman Marasuchus - rabbit-croc :iconscotthartman:ScottHartman 123 27

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ScottHartman
Scott Hartman
Artist | Professional | Digital Art
United States
Current Residence: Wisconsin
Favourite genre of music: Anything but country!
Operating System: Windows 10, OSX, & Android
MP3 player of choice: Anything that can connect to Google Music
www.patreon.com/skeletaldrawin…
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Activity


Poposaurus gracilis sauntering along
The eponymous poposaurid (a group of croc-line archosaurs), it sorta parallelled theropods in becoming bipedal, but was also quite different from theropods in other ways.
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Walker's heavy claw (2018)
2018 Update: Some more revisions in preparation for tackling other spinosaurids (hopefully!) in the coming year. I've decided that there is probably less missing from the incomplete femur (missing a section out of the middle) than before, which brings the femur more into line in terms of how robust it is relative to its length. I updated the scaling of the incomplete lower limb elements to reflect his. I also updated the vertebral column somewhat, reducing the rate at which the neural spines increase in height in the mid-posterior dorsals. Along this line, I've seen some internet hacks of my skeletal (note: please don't hack up or modify my skeletal reconstructions and post them!) that restore the last dorsal as having a very short neural spine; the neural spine of the last dorsal is obviously broken and is clearly labeled as such in the classic Charig & Milner description, so there's no reason to try and force it to have a really short neural spine. Finally, I've raised the neck a bit - not due to any changes in the anatomy, but to put it more in line with the semi-flexed pose I use on other theropods, and because I think it will make a more useful comparative pose in its relatives. For posterity I've left the previous updates below.


2016 Update: I updated the presacral series to reflect the new identifications of Evers et al. 2015 in their Sigilmassasaurus description. This has the effect of putting a stronger S-curve back into the neck, but it still leaves us with a hangdog angle for the skull. Interestingly, the neural spine morphology suggests the building up of axial muscles or nuchal ligaments (or both) along the back of the neck and front of the dorsal column, which is not unlike what Andre Cau has suggested for Spinosaurus, and would make it analogous to what we see in Deinocheirus as well (but on a smaller scale than either of those taxa).

2015 Updated: After nearly a decade and a half here is the overhauled skeletal. The overall proportions aren't all that different, but some of the details are. The midline crest has been moved back above the lacrimal, and I can now confirm that the odd downcurving neck seems to be a real thing, although it also uses some upwardly deflected almost cervicalized anterior dorsals to achieve it. The gray portion of the ilium is the part that was preserved as an imprint (i.e. there is no surviving bone from those parts) and so its accuracy depends entirely on the observations of the original excavators.

Original description: Baryonyx wasn't the first spinosaurid found, but it went a long ways in clarifying what these sorts of theropods looked like and ate. And it turns out they ate fish - although like modern crocodilians, Baryonyx almost certainly ate anything else it could get a hold of too (both fish scales and iguanodont bones were found in its stomach).
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Hello DAers!

My long absence due to multiple projects (and teaching, and graduate school) is probably a month away from coming to an end. I apologies for those who sent me IMs and didn't hear back, sometimes for months. If there is a rush it's almost always better to contact me through my website contact form, as I'll see that right away.

Also, I should have lots of fun skeletals to show off in the coming months (and years) thanks in part to the work I put in over the last 9 months. I look forward to chatting with you all again in a few weeks!

-Scott
Hello DAers!

My long absence due to multiple projects (and teaching, and graduate school) is probably a month away from coming to an end. I apologies for those who sent me IMs and didn't hear back, sometimes for months. If there is a rush it's almost always better to contact me through my website contact form, as I'll see that right away.

Also, I should have lots of fun skeletals to show off in the coming months (and years) thanks in part to the work I put in over the last 9 months. I look forward to chatting with you all again in a few weeks!

-Scott

Comments


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:iconaction-figure-opera:
action-figure-opera Featured By Owner Apr 25, 2018
Going way out on a limb since Jurassic Park's design team has never cared much about anatomical accuracy: Have there been recent discoveries regarding the shape of allosaurus's head? I ask because the toys for the previous Jurassic World movie featured a relatively accurate allosaurus. The species itself makes no appearance in that movie (as far as I know). However, the species does make an appearance in the new movie Jurassic World Fallen Kingdom, and its skull seems to be almost completely wrong. It doesn't even read like an allosaurid. It has a really fat head like a sperm whale. Its lower jaw is far too thick. The top of its head is flat. And the horns on its head point completely backward, rather than up. They don't even have a shallow upward curve. Is any of this consistent with new allosaur studies?
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:iconscotthartman:
ScottHartman Featured By Owner May 2, 2018  Professional Digital Artist
No, it's just the overactive imaginations of the toy developers.
Reply
:icongigaboss101:
GigaBoss101 Featured By Owner Apr 21, 2018  Hobbyist Traditional Artist
What species of Mammuthus is portrayed in your 2011 skeletal?
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:iconscotthartman:
ScottHartman Featured By Owner May 2, 2018  Professional Digital Artist
M. primigenius.
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:icondinopithecus:
Dinopithecus Featured By Owner Edited Apr 9, 2018
Given the known skull material from Ceratosaurus dentisulcatus, how long/large do you think its skull was?

Also, just to be sure, is C. dentisulcatus likely synonymous with C. nasicornis? I remember hearing such an idea before, but I don't think I've ever read why.
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:iconkukuvitza:
Kukuvitza Featured By Owner Edited Mar 27, 2018
Sheesh, why do you keep logging in everyday and staying online for hours on DA, considering you don't do anything at all and you get no new notifications? Don't you have other and better things to do in your time than sitting infront of the computer?
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:iconaction-figure-opera:
action-figure-opera Featured By Owner Apr 25, 2018
"infront" isn't a word. Also, you're an idiot.
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:iconscotthartman:
ScottHartman Featured By Owner Mar 31, 2018  Professional Digital Artist
What on Earth are you talking about? I'm lucky to visit DA once every other week for a couple of minutes to answer questions on skeletal?
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:icontkwth:
TKWTH Featured By Owner Mar 12, 2018  Hobbyist Digital Artist
Hey, Scott! Just wondering, do you have any non-mammalian synapsid skeletals in the pipeline? Man cannot live on Tracy Ford skeletals alone... ;)
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:iconscotthartman:
ScottHartman Featured By Owner Apr 1, 2018  Professional Digital Artist
Not in the short term. There might be one or two in the medium term, but we'll see how those projects shake out.
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