Biggest Dinosaur Found (as of September 2010)

Information and Picture from: http://dinosaurs.about.com/od/herbivorousdinosaurs/p/argentinosaurus.htm

Name:

Argentinosaurus (Greek for "Argentina lizard"); pronounced ARE-jen-teen-oh-SORE-us
Habitat:

Forests of South America
Historical Period:

Middle Cretaceous (100-90 million years ago)
Size and Weight:

Up to 130 feet long and 110 tons
Diet:

Plants
Distinguishing Characteristics:

Enormous size; long neck; relatively small head
About Argentinosaurus:

As you may have guessed from its name, the remains of Argentinosaurus were dug up in present-day Argentina, in South America. To date, researchers haven't found an entire skeleton, but what they have found--four-foot long vertebrae and five-foot-long tibiae--indicate that Argentinosaurus was a truly titanic sauropod (hence its classification in some circles as a titanosaur).

Interestingly, the remains of Argentinosaurus were dug up near the fossils of another huge dinosaur--the carnivorous theropod Giganotosaurus. This has led paleontologists (and TV producers) to speculate that packs of Giganotosaurus may have hunted down full-grown Argentinosaurus adults--a chase that would have been deadly for any smaller creatures that happened to get in the way! (By the way, paleontologists in India have uncovered the remains of a possible titanosaur, Bruhathkayosaurus, that may have been even bigger than Argentinosaurus; the trouble is, no one is exactly sure what type of dinosaur this was!)