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hesperornis

[ hes-puh-rawr-nis ]
/ ˌhɛs pəˈrɔr nɪs /
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noun
a toothed aquatic bird of the extinct genus Hesperornis, fossils of which are found in rocks of Cretaceous age in Kansas, having the rear legs modified for swimming and reaching a length of more than 4 feet (1.2 meters).
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Origin of hesperornis

<New Latin (1872) <Greek Hésper(os) Hesperus + órnis bird
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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