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hes•per•or•nis



Pronunciation: (hes"pu-rôr'nis), [key]
—n.
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 ft. (1.2 m).

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

hesperinosHesperus

 

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