Antarctosaurus

Antarctosaurus (pronounced as IPA: ; meaning "southern lizard") is a genus of titanosaurian sauropod dinosaur from the Late Cretaceous Period of what is now South America. It was a huge quadrupedal herbivore with a long neck and tail. It was possibly armored. As Antarctosaurus is not known from a complete skeleton and tail lengths are highly variable among sauropods, the true size of these animals is hard to extrapolate. The type species may have been over 60 feet (18 meters) long, and a second species may have been one of the largest land animals ever.