Shop Forum More Submit  Join Login
Concavenator Skeleton by Franz-Josef73 Concavenator Skeleton by Franz-Josef73
The carcharodontosaurid Concavenator is known from an almost complete specimen from Las Hoyas in Spain. This skeletal restoration is based on photos and tracings of the specimen with corrections for bone distortion, rotation, and displacement. It's the first skeletal reconstruction I've done entirely in the computer (no pencils, pens, or paper) and it went quickly and I believe, more accurately than any previous restoration I've done thanks to the ability to directly trace over individual bones and maintain correct proportions. Not having seen the specimen, I'm unsure about some details, especially the vertebral spines above the pelvis. It looks like they should continue across the pelvis, making a gentle arch, rather than the wierd, double hump, but that remains for someone with access to the specimen to determine. The quills along the ulna are based on the apparent presence of quill nodes on the specimen and the scale bar is 100 cm, divided into 10 cm intervals.
Add a Comment:
 
:icond-juan:
D-Juan Featured By Owner Sep 18, 2016  Student General Artist
Can I upload a fleshy version? Giving credit
Reply
:iconfranz-josef73:
Franz-Josef73 Featured By Owner Sep 18, 2016  Hobbyist General Artist
Go right ahead.
Reply
:icond-juan:
D-Juan Featured By Owner Sep 18, 2016  Student General Artist
Thank you!
Reply
:iconchrist1nme:
Christ1nMe Featured By Owner Nov 11, 2015  Hobbyist Digital Artist
I agree with you on the vertebral spines above the pelvis, it would seem like there should be something there.
Thanks for posting this!
Reply
:iconfranz-josef73:
Franz-Josef73 Featured By Owner Nov 28, 2015  Hobbyist General Artist
Glad you enjoyed it!
Reply
:iconfeathereddino:
FeatheredDino Featured By Owner Dec 18, 2014
Can I use this skeletal as an anatomical reference? Yours is the best Concavenator rendition around.

(I only want to use the skull)
Reply
:iconfranz-josef73:
Franz-Josef73 Featured By Owner Dec 19, 2014  Hobbyist General Artist
Please go right ahead. Thanks!
Reply
:icontheropod1:
theropod1 Featured By Owner Oct 2, 2013  Student Traditional Artist
Very nice work! Did you do this in inkscape?

I think the awkward spines may have been connected to those of the tail at least by a muscular hump or ridge, even if there were no spinous processes reaching above the ilium. That may have had some use in aiding the pulling motion executed by the M. caudofemoralis lungus (when it retracted the femur against the hemal processes) in flexing the tail base slightly upwards (giving a better leverage and additional power to the ventral musle). Or perhaps even leg muscles attached there directly (tough that seems less likely).
Reply
:iconfranz-josef73:
Franz-Josef73 Featured By Owner Oct 2, 2013  Hobbyist General Artist
Hey thanks. I used Adobe Illustrator. I agree the spines look like they support some big ligament or muscle structure. I'd be interested to see what a detailed anatomical study would come up with.
Reply
:iconkiardra:
Kiardra Featured By Owner Apr 8, 2013  Student Artisan Crafter
Extraordinary. It looks as if it's designed to be ridden!
Reply
:iconfranz-josef73:
Franz-Josef73 Featured By Owner Apr 8, 2013  Hobbyist General Artist
Heh. Hadn't thought of it that way, but you're right!
Reply
:iconftgaara:
ftgaara Featured By Owner Dec 12, 2012  Professional Traditional Artist
nice! even the skeleton incomplete..
Reply
:iconfranz-josef73:
Franz-Josef73 Featured By Owner Dec 12, 2012  Hobbyist General Artist
Thank you. I try to be as accurate as possible.
Reply
:iconyty2000:
yty2000 Featured By Owner Dec 11, 2012
Is this animal different in basic proportions compare to larger carcharodontosarids like Acrocanthosaurus or Mapusaurus?
I want to do some reconstructions myself, so I wonder if i could use Concavenator as a good model for tail length.
Reply
:iconfranz-josef73:
Franz-Josef73 Featured By Owner Dec 12, 2012  Hobbyist General Artist
Good question! Concavenator is a LOT smaller than either Acrocanthosaurus or Mapusaurus, so it's proportions might be different. It's tail seems to be not as tall towards the rear as Giganotosaurus or Acrocanthosaurus, but the length relative to the animal seems about the same.
Reply
:iconyty2000:
yty2000 Featured By Owner Dec 12, 2012
Thanks for the response!
Do you know where I can find a copy of Coria and Salgado's paper describing the Giga holotype?
Reply
:iconfranz-josef73:
Franz-Josef73 Featured By Owner Dec 12, 2012  Hobbyist General Artist
You should be able to get it through interlibrary loan since it's in Nature. Or you could email Rodolfo Correa and see if he's got the PDF available. The paper is very preliminary and doesn't illustrate the specimens well at all.
Reply
:iconyty2000:
yty2000 Featured By Owner Dec 18, 2012
I found a picture of the pectoral girdle. The coracoid is very small proportionally. Does that only occur in Giganotosaurus? Mapusaurus's scapula seems longer and more slender, and the coracoid is not articulated so I can not tell.
Reply
:iconfranz-josef73:
Franz-Josef73 Featured By Owner Dec 18, 2012  Hobbyist General Artist
Excellent question. I haven't looked at the pectoral girdle of Mapusaurus, but Giganototsaurus does have reduced coracoids and a very reduced scapula for it's size. Biomechanically that means smaller muscles too, but why, I have no idea.
Reply
:iconyty2000:
yty2000 Featured By Owner Dec 12, 2012
Ah I see. Maybe I will start on Mapusaurus first.
Reply
:iconthedilophoraptor:
TheDilophoraptor Featured By Owner Dec 11, 2012  Hobbyist General Artist
so, thats what the spines look like?
Reply
:iconfranz-josef73:
Franz-Josef73 Featured By Owner Dec 11, 2012  Hobbyist General Artist
Yes.
Reply
:iconthedilophoraptor:
TheDilophoraptor Featured By Owner Dec 12, 2012  Hobbyist General Artist
thats very neat, first time is was the vertibre
Reply
:iconemperordinobot:
EmperorDinobot Featured By Owner Dec 9, 2012
This is indeed a very strange specimen.
Reply
:iconfranz-josef73:
Franz-Josef73 Featured By Owner Dec 10, 2012  Hobbyist General Artist
Strange indeed. But cool!
Reply
:iconpeteridish:
PeteriDish Featured By Owner Dec 6, 2012  Hobbyist General Artist
awesome! =)
Reply
:iconfranz-josef73:
Franz-Josef73 Featured By Owner Dec 6, 2012  Hobbyist General Artist
Thanks very much!
Reply
:iconnutcase9:
Nutcase9 Featured By Owner Dec 6, 2012  Student General Artist
Is this a real thing? It's hard to tell.
Reply
:iconfranz-josef73:
Franz-Josef73 Featured By Owner Dec 6, 2012  Hobbyist General Artist
It's very real. If you google Comcavenator, you can find the original paper and photos of the specimen.
Reply
:iconfragillimus335:
Fragillimus335 Featured By Owner Dec 5, 2012  Hobbyist General Artist
Very nice!
Reply
:iconfranz-josef73:
Franz-Josef73 Featured By Owner Dec 5, 2012  Hobbyist General Artist
Thanks very much. It's always fun to see how a skeleton is going to turn out during restoration.
Reply
Add a Comment:
 
×




Details

Submitted on
December 3, 2012
Image Size
616 KB
Resolution
6219×2079
Link
Thumb

Stats

Views
6,829 (1 today)
Favourites
136 (who?)
Comments
31