Hesperornis regalis, extinct gigantic diver, Cretaceous. Illustration by J. Smit from H. N. Hutchinson's "Extinct Monsters and Creatures of Other Days," Chapman and Hall, London, 1894.

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Photo credit: © Florilegius / Alamy / Afripics
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Keywords: ., creatures, cretaceous, days, dinosaur, diver, extinct, gigantic, hesperornis, hutchinson, illustration, monsters, palaeontology, paleontology, regalis, smit, victorian