1) Extinct flightless bird
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https://www.crosswordclues.com/clue/hesperornis
Hesperornis (meaning `western bird`) is a genus of flightless aquatic birds that spanned the first half of the Campanian age of the Late Cretaceous period (83.5–78 mya). One of the lesser-known discoveries of the paleontologist O. C. Marsh in the late 19th century Bone Wars, it was an important early find in the history of avian paleontology. .....
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http://en.wikipedia.org/wiki/Hesperornis
• (n.) A genus of large, extinct, wingless birds from the Cretaceous deposits of Kansas, belonging to the Odontornithes. They had teeth, and were essentially carnivorous swimming ostriches. Several species are known. See Illust. in Append.
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http://thinkexist.com/dictionary/meaning/hesperornis/
extinct birds found as fossils in Late Cretaceous Period deposits dating from about 120 million to 65 million years ago; this bird is known mostly ... [3 related articles]
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http://www.britannica.com/eb/a-z/h/44
(pronounced HES-per-OR-nis) Hesperornis meaning western bird) was an early, flightless bird that lived during the late Cretaceous period . This diving bird was about 3 feet (1 m) long and had webbed feet, a long, toothed beak, and strong legs. Although it couldn't fly, it was probably a strong swimmer and likely lived near coastlines and ate fish. ...
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http://www.enchantedlearning.com/subjects/dinosaurs/glossary/
Hes`pe·ror'nis noun [ New Latin , from Greek ... western + ..., ..., a bird.]
(Paleon.) A genus of large, extinct, wingless birds from the Cretaceous deposits of Kansas, belonging to the Odontornithes. They had teeth, and were essentially carnivorous swimming ostriches. Several species are k...
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http://www.encyclo.co.uk/webster/H/39
Hesperornis A genus of large, extinct, wingless birds from the Cretaceous deposits of Kansas, belonging to the Odontornithes. They had teeth, and were essentially carnivorous swimming ostriches. Several species have been identified.
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http://www.wordinfo.info/words/index/info/view_unit/982/
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