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Submitted on
June 29, 2009
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High Spined Reptile by ScottHartman High Spined Reptile by ScottHartman
Acrocanthosaurus atokensis, updated again as part of my ongoing overhaul project.

Edit: Another overhaul; redrew the skull based on the data published this week ([link]) Also made some other minor changes to the postcrania that I'd been meaning to get around to.
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bLAZZE92 Featured By Owner Oct 12, 2014
Is it possible that the legs were shorter? I just noticed that the often mentioned femur lengths of both Fran and the holotype are estimates, with the later being criticized as too long by Harris (1998), that the femora are incomplete, I also just noticed in photos of the mount and the digital scans presented in several of Karl Bates publications that the femur is reconstructed there at ~120cm long, which is roughly what you'll get from isometric scaling comparing the circumference of Fran's femur with that of the only complete Acrocanthosaurus femur (SMU 74646).
PedroSalas Featured By Owner Apr 30, 2014  Hobbyist Traditional Artist
amadeus450 Featured By Owner May 11, 2013  Student Traditional Artist
nice cool too
thediremoose Featured By Owner Mar 6, 2013
Interesting. The skeleton on exhibit at the NCSM seemed to have unusually short legs in comparison to this. I know the spines were restored too long on the mount, but was that the only mistake?
ScottHartman Featured By Owner Mar 6, 2013  Professional Digital Artist
The ribs are also too vertical, which makes the body ridiculously deep and thus makes the legs look shorter. This is a problem with like 95% of all dinosaur mounts.
LordKaizen Featured By Owner Jan 4, 2013
Very lovely. I am curios why there appear to be holes, or notches in the first few caudal neural spines. Did they serve as a way to lighten them?
ScottHartman Featured By Owner Mar 6, 2013  Professional Digital Artist
Actually I suspect they are related to the large elastic nuchal ligament that runs between neural spines on the presacrals (and I'm guessing for the first dozen or so caudals, with those gaps showing where the topmost limit is).
Albertonykus Featured By Owner Sep 3, 2012
Saw this recently on a plaque at the Smithsonian NHM.
dinosauru Featured By Owner May 30, 2012  Student Traditional Artist
was cool
amadeus450 Featured By Owner May 22, 2012  Student Traditional Artist
my fav dino
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