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Letters to Nature
Nature 261, 129 - 130 (13 May 1976); doi:10.1038/261129a0

Estimates of speeds of dinosaurs


Department of Pure and Applied Zoology, The University of Leeds, Leeds LS2 9JT, UK

THE faster an animal walks or runs the longer, in general, are its strides. Many dinosaur tracks have been found from which stride lengths can be measured1 .I have now obtained a relationship between speed, stride length and body size from observations of living animals and applied this to dinosaurs to achieve estimates of their speeds. The estimated speeds are rather low—between 1.0 and 3.6 m s−1.



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