Using
Ratios to Calculate
the Speed of a Dilophosaurus
What scientists measured during the emu experiment.
The average emu prints were 7 inches in length and were spaced 39 inches apart.
The ratio of the foot to stride is approximately 1:5.7 or 0.18
What scientists measured at the fossilized track site.
The Dilophosaurus's tracks range from 12 to 18 inches in length and are spaced 4.5 to 5.5 feet apart.
The averages for the Dilophosaurus's tracks are 15 inches in length and are spaced 48 inches apart.
The ratio of the Dilophosaurus foot to stride is approximately 1:3.2 or 0.29
Scientists took the foot/stride relationship for the emu and compared it with the foot/stride ratio of the dilophosaurus. The emu's speed was measured to be 25.8 miles per hour with a foot/stride ratio of 0.18.
Knowing this information you can caculate the speed of the dilophosaurus that made our mysterious track. Once you think you have an answer roll your mouse over the picture of the dilophosaurus below.
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