From the BBC article:
<i>Weighing in at 77 tonnes, it was as heavy as 14 African elephants, and seven tonnes heavier than the previous record holder, Argentinosaurus.</i><p>According to the Wikipedia page about Dinosaur size[1], the biggest (and longest) dinosaur is Amphicoelias fragillimus (at 122 tons), not Argentinosaurus. So, won't this new dinosaur be the second heaviest?<p>[1] <a href="http://en.wikipedia.org/wiki/Dinosaur_size#Heaviest_dinosaurs" rel="nofollow">http://en.wikipedia.org/wiki/Dinosaur_size#Heaviest_dinosaur...</a>