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November 24, 2012
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Futalognkosaurus recon Mk. VIII by Paleo-King Futalognkosaurus recon Mk. VIII by Paleo-King
The long awaited 8th version! Multiview hi-fi skeletal, which is a first for any titanosaur. :XD: This will be the last posted version before a final "Forgotten Giants" treatment.

This multi-view skeletal has already inspired several other restorations, including this superb one by Vladimir Nikolov: [link] . Earlier versions were the basis for the Royal Ontario Museum's exhibit [link] of Futalognkosaurus - though their final skeleton cast ended up being an uncalled-for frankenstein job that is actually more Alamosaurus than Futalognkosaurus.

Corrections since the last version: the entire skeleton overhauled! New photos and data available since last time required a whole new skeletal, with nearly none of the original reconstruction carried over. A number of elements were redone based on Scott Hartman's new skeletal [link] , but with additional detail. Whereas Hartman filled in the gaps with basal Malawisaurus material (including the skull), I went straight for the hi-fi jugular and filled the gaps with material from the closest known relatives of Futalognkosaurus - Mendozasaurus, Traukutitan, and Drusilasaura. The skull is a midde-of-the-road speculative morph between Malawisaurus and Antarctosaurus considering the transitional position of Futalognkosaurus. I doubt the skull was a clone of either Malawisaurus or Rapetosaurus (as reconstructed in the new ROM mount). Also included is material from the two referred juvenile specimens of Futalognkosaurus found at the same site at Barreales Lake. The hands and feet are speculative at this point, including the size and shape of the thumb claws.

The majority of the tail has not been found, and was restored after Mendozasaurus and Traukutitan. Since there aren't any good top-view photo sets for lognkosaurian caudals, the dorsal view of the tail is based on two more distant relatives known from far more complete tails - the basal saltasauroids Trigonosaurus and Baurutitan.

Futalognkosaurus dukei (Calvo, et. al. 2007)

Taxonomy: Saurischia; Sauropodomorpha; Sauropoda; Macronaria; Titanosauria; Lognkosauria
Meaning of name: "Great Chief Lizard of Duke Energy Company"
Time: Late Cretaceous (Turonian-Coniacian epochs, ~ 90-87 million years ago)
Length: ~28.5m (94ft)
Probable Mass: ~ 65-70 tons

Hailing from Late Cretaceous Argentina, Futalognkosaurus dukei was one of the most massive dinosaurs ever known, with the deepest neck on record and a colossal pelvis exceeding 2m at its widest point. It's also the most complete giant titanosaur known. My skeletal reconstruction is done based on extensive cross-scaling of the best unpublished photos and the most reliable published measurements. Three specimens of Futalognkosaurus were found at the site, which is on the edge of Barreales Lake. Aside from the "adult" holotype, the other two individuals are juveniles. They include arm and leg material which still has yet to be published, including at least one complete humerus: [link] . As one might expect, most photos of these are small and from awful angles which made measuring and scaling them a nightmare. The femur of one of the referred juveniles (visible in the background of one photo) [link] shows a close resemblance to Traukutitan: [link]

The Barreales Lake site is a rare treasure, since it preserves a whole Cretaceous ecosystem, including the giant allosauroid Megaraptor, the true raptor Unenlagia, a couple of undescribed titanosaur species, and plenty of plants, fish, turtles and crocodiles, in addition to Futalognkosaurus itself.

Futalognkosaurus was a member of the family Lognkosauria, a transitional group of titanosaurs with a plethora of strange and extreme skeletal features, including extremely wide dorsal vertebrae and rib cages. They ranged from the small (Malawisaurus) to the colossal (Puertasaurus). Futalognkosaurus, a Late Cretaceous lognkosaur, was one of the larger members of the family, and had the deepest neck of any sauropod with the possible exception of Isisaurus.

Currently this recon shows Futalognkosaurus at 94 ft. (28.5m), rivaling Argentinosaurus in length, and likely exceeding both Paralititan and Argyrosaurus. Nevertheless in terms of overall dimensions it is outclassed by Argentinosaurus and several other giant titanosaurs. Though wide and massive, it was likely a good bit smaller in overall volume than its wide-bodied cousins Puertasaurus and Ruyangosaurus. The 32-34m estimate originally proposed by Jorge Calvo and colleagues is a bit excessive in my view. All the same, anything approaching 100 ft. long and 70 tons is beyond awesome.
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:iconpaleo-reptiles:
Paleo-reptiles Featured By Owner May 7, 2013
Remember the (adult) Alamosaurus
[link]
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:iconpaleo-reptiles:
Paleo-reptiles Featured By Owner Mar 26, 2013
Beautiful and perfect!
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:iconpaleo-king:
Paleo-King Featured By Owner Mar 30, 2013  Professional Traditional Artist
Thanks very much! Well, as close to perfect as anyone has gotten, given that many parts of the skeleton have never been photographed from good angles. :XD:
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:icon13ghostez:
13ghostEz Featured By Owner Mar 13, 2013  Hobbyist
haha it's fat...
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:iconpaleo-king:
Paleo-King Featured By Owner Mar 17, 2013  Professional Traditional Artist
Yes, many titanosaurs look very fat compared to other sauropod groups (especially intermediate and derived titanosaurs... the basal ones like Argentinosaurus probably looked a bit slimmer and more barrel-shaped). Futalognkosaurus wasn't even the fattest titanosaur (that record would probably go to its cousins Puertasaurus and Ruyangosaurus). The 'fattening' of later titanosaur groups held true at any size; even some of the smaller titanosaurs (such as Rapetosaurus [link]) had pretty wide rib cages. And of course don't forget Opisthocoelicaudia, which was built like a tank all over its body.

Why did they get this way? Probably had something to do with the plants they were eating. It's possible that many cretaceous titanosaurs started eating angiosperms as well as conifers, and had to evolve bigger guts to break down the alkaloid toxins (they didn't chew so it would be hard to "denature" the toxins by oxidation). Or it could be that conifers themselves got tougher to digest in the cretaceous. But one thing's for sure... once titanosaurs went fat, they never went back. :XD:
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:icon13ghostez:
13ghostEz Featured By Owner Mar 25, 2013  Hobbyist
i just thought it was cute
cuz dinosaurs r cute, especially that one big scary pterodactyl kind. i guess that would be called a pteranodon, not a dinosaur. i forget what its called, though. it's supposed to be the biggest kind. i like things that fly, they're cool...
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:iconalgoroth:
Algoroth Featured By Owner Jan 15, 2013  Professional General Artist
Beautiful work, PK! Take a bow! :iconraptorlaplz:
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:icondino-mario:
Dino-Mario Featured By Owner Jan 3, 2013  Hobbyist General Artist
Really nicely done!!!
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:iconsapiens89:
sapiens89 Featured By Owner Dec 27, 2012  Student Traditional Artist
nice!
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:iconemperordinobot:
EmperorDinobot Featured By Owner Dec 5, 2012
I'mma need to update mine. And what is Traukutitan? Is that new?
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