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Bullockornis : ウィキペディア英語版 | Bullockornis
''Bullockornis planei'', nicknamed the ''Demon-Duck of Doom'' or ''Thunderbird'', is an extinct flightless bird that lived in the Middle Miocene, approximately 15 million years ago, in what is now Australia.〔Rich, P. (1979)〕 ''Bullockornis'' stood approximately 2.5 metres (8 ft 2 in) tall. It may have weighed up to 250 kg (550 lb). Features of ''Bullockornis'''s skull, including a very large beak suited to shearing, indicate that the bird may have been carnivorous. The bird's skull is larger than that of many small horses.〔Ellis, R. (2004)〕 Many paleontologists, including Peter Murray of the Central Australian Museum, believe that ''Bullockornis'' was related to geese and ducks. This, in addition to the bird's tremendous size and possible carnivorous habits, gave rise to its colourful nickname. The bird's generic name is improperly translated as "ox-bird",〔 and was named instead for the type locality for the genus at Bullock Creek, Australia. == Footnotes ==
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