http://en.wikipedia.org/wiki/Dinosaur_size:
http://www.bbc.com/news/science-environment-27441156
http://dinosaurs.about.com/od/typesofdinosaurs/tp/Five-Biggest-Dinosaurs.htm
http://www.dailymail.co.uk/news/article-2631309/Scientists-largest-dinosaurs-Titanosaur-fossil.html
