Evolution: Taking Wing with Weak Feathers
نویسنده
چکیده
Scientists long thought they knew what the wings of early birds looked like. But new reconstructions of Archaeopteryx and its kin suggest quite different feather arrangements on their wings with profound implications for the evolution of flight.
منابع مشابه
Primitive Wing Feather Arrangement in Archaeopteryx lithographica and Anchiornis huxleyi
In modern birds (Neornithes), the wing is composed of a layer of long, asymmetrical flight feathers overlain by short covert feathers. It has generally been assumed that wing feathers in the Jurassic bird Archaeopteryx and Cretaceous feathered dinosaurs had the same arrangement. Here, we redescribe the wings of the archaic bird Archaeopteryx lithographica and the dinosaur Anchiornis huxleyi and...
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عنوان ژورنال:
- Current Biology
دوره 22 شماره
صفحات -
تاریخ انتشار 2012