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1. (Animals) an extinct primitive Jurassic bird, formerly placed in the genus Archaeornis but now thought to be a species of archaeopteryx
2. (Palaeontology) an extinct primitive Jurassic bird, formerly placed in the genus Archaeornis but now thought to be a species of archaeopteryx
[C19: New Latin, from archaeo- + Greek ornis bird]
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|Noun||1.||archaeornis - extinct primitive toothed bird with a long feathered tail and three free clawed digits on each wing|
bird - warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings
genus Archaeornis - a genus of fossil bird
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