But as sure as rampaging dinosaurs have become extinct, the days of outsized-living CEOs are over.

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It's been suggested that this "three metre gap" proves that dinosaurs were either extinct, or well on the way out, long before the catastrophic impact event.

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Other upcoming Pixar films include The Good Dinosaur, about a world in which the dinosaurs never went extinct, which is scheduled for 2014, and two untitled films.

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In particular, there was some indication that most dinosaurs may have gone extinct before the asteroid impact.

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The carbon-tax argument is as extinct as the dinosaurs.

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After 150 million years of triumphant existence the hardy dinosaurs, unable to withstand the resultant climatic changes, became extinct.

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He even tried the technique on dinosaurs, and came to the conclusion that Tyrannosaurus Rex--the favorite extinct monster of schoolboys everywhere--was a relative slowpoke.

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