Article: Was Allosaurus the biggest predator?(history of dinosaurs)

Allosaurus (AL-uh-SAW-rus) was one of the biggest meat eaters. It lived about 145 million years ago in western North America and perhaps Europe. Although most allosaurs we know about were less than 30 feet long, some grew to be nearly as long as a 40-foot Tyrannosaurus rex. Since Giganotosaurus (jih-guh-NOH-toh-SAW-rus) was discovered in the 1990s, it has been the largest meat eater we know about. It ...

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