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Demyx Wii FC 5155-2805-0806 DS FC 2449 4774 5717 !!lmwZlVKmxPs
Argentinosaurus. 100 feet long, 92 tons. The largest confirmed dinosaur to have ever existed. It just doesn't seem possible that such a massive beast could have once existed.

http://www.youtube.com/watch?v=-XDpkVEsF3Y
>> Anonymous
old.

wait what.
>> Anonymous
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It's not exactly very well known dinosaur. Any size estimates are going to have a huge error margin.

Also, video fails for claws on forefeet. Titanosaurs had a really weird "hand" in that there were no claws and in fact no fingers at all. They walked on the ends of their metacarpals! They didn't have elephant like foot pads either, just this weird horseshoe-shaped stump.