The ultimate grudge match?
In the movie Jurassic Park III, the Spinosaurus is the biggest and baddest dinosaur yet, a worse villain even than Tyrannosaurus rex. Could Spinosaurus in fact defeat T. Rex? Spinosaurus was probably a bit longer than T. rex, though it was more lightly built. But Spinosaurus lived 10-30 million years before T. rex tromped the Earth. Had they been able to time-travel, though, there's no telling what would have happened—who would win a Spinosaurus vs. T. rex fight might depend on the strength of the individual dinosaurs.
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|Name means ||"spine lizard"||"tyrant lizard"|
|Length ||40-50 feet (12-15 m) ||33-45 feet (10-14 m)|
|Weight ||4-6 tons||5-7 tons|
|Era ||Middle Cretaceous||Late Cretaceous|
|Fossils found ||North Africa, South Asia||North America, Mongolia|
|Walked on two legs? ||Yes||Yes|
|Long tail? ||Yes||Yes|
|Huge, powerful jaws? ||Yes||Yes|
|Mystery feature ||Large sail along its back: did it regulate body temperature? Attract mates? ||Teeny, useless-looking little arms: what were they used for?|
|How mean was it? ||Not applicable: it was a reptile. Reptiles don't have complex feelings. ||Also a reptile|