archaeopteryx in A Sentence

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    Archaeopteryx, the first known bird,

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    The fossil Archaeopteryx looks like a bird but it bears a number of other features, which are found in reptiles.

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    The boundary between avian and non-avian dinosaurs is not clear, but Archaeopteryx, traditionally considered one of the first birds, lived around 150 Ma.[159].

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    For the first time, it was discovered in 1861 as Archaeopteryx which was a small feathered dinosaur around the size of a crow.

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    Based on the spacing of the six preserved knobs in this specimen, the authors suggested that Velociraptor bore 14 secondaries(wing feathers stemming from the forearm), compared with 12 or more in Archaeopteryx, 18 in Microraptor, and 10 inRahonavis.

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    Based on the spacing of the six preserved knobs in this specimen, the authors suggested that Velociraptor bore 14 secondaries(wing feathers stemming from the forearm), compared with 12 or more in Archaeopteryx, 18 in Microraptor, and 10 in Rahonavis.

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