Meet "Ingentia Prima," The World's Earliest-Known Giant Dinosaur!

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Artist’s impression of the Ingentia prima that lived in the Triassic Period (Image Credit: Jorge A. González)

Researchers have always maintained that Triassic dinosaurs were small, chicken-sized critters and that it was not until the Jurassic period — about 180-million years ago — that massive herbivorous sauropods, like the Diplodocus and Brachiosaurus, emerged. However, the discovery of a new dinosaur species in Argentina suggests that the animals achieved gigantism during the late Triassic period, about 30 million years earlier than previously believed.

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