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A 1-meter dinosaur footprint just set a record after 20 years

A single fossilized footprint, roughly 1 meter long, has pushed paleontologists to redraw the upper limits of dinosaur size ...
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Definition of standard meter length has changed over centuries

Select an option below to continue reading this premium story. Already a Honolulu Star-Advertiser subscriber? Log in now to continue reading. Until the late 1700s there were no standard units. After ...