Papers Sauropods (Wikipedia.org) "They are notable for the enormous sizes attained by some species, and the group includes many of the largest animals to have ever lived on land. Well-known genera include Apatosaurus (formerly known as Brontosaurus), Brachiosaurus and Diplodocus. Sauropods first appeared in the late Triassic Period, where they somewhat resembled the closely related (and possibly ancestral) group Prosauropoda. By the Late Jurassic (150 million years ago), sauropods were widespread (especially the diplodocids and brachiosaurids). By the Late Cretaceous, those groups had mainly been replaced by the titanosaurs, which had a near-global distribution. However, as with all other non-avian dinosaurs, the titanosaurs died out in the Cretaceous–Tertiary extinction event. Fossilised [sic] remains of sauropods have been found on every continent, including Antarctica." Sauropods and Sauromorphs (Discovery.com) "The new dinosaur, Aardonyx celestae, belongs to the Sauropodomorpha, a group that includes the ancestors of sauropods -- gigantic, four-legged herbivores -- but not the sauropods themselves. The largest animals that ever walked the earth were sauropodomorphs." "The recently documented sauropodomorph, described in the latest Proceedings of the Royal Society B, lived around 200 to 183 million years ago in South Africa and was nearly 30 feet in length." Study: Sauropods Held Their Heads Forward, Not Up (Discovery.com) "Based on the new findings, it is believed that sauropods held their heads more like a horse than a giraffe." 12-09

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