CHICAGO, May 7 — An exquisitely preserved fossil of the earliest-known bird Archaeopteryx, a pigeon-sized specimen revealing new anatomical details of a creature whose 19th...
A limestone slab bearing the fossil of the ancient bird Archaeopteryx is seen at the Field Museum in Chicago in this undated handout photograph.
Archaeopteryx lived about 150 million years ago during the Jurassic Period. Birds evolved from small feathered dinosaurs, and are part of the dinosaur lineage — indeed, the sole survivors from that lineage of a mass extinction 66 million years ago caused by an asteroid striking Earth. Archaeopteryx boasted reptilian traits like teeth, a long, bony tail, and claws on its hands, alongside bird-like traits like wings formed by large, asymmetrical feathers.
“Archaeopteryx lived on an arid, fairly sparsely vegetated archipelago visited by seasonal storms. It seems to have been adapted for life on the ground, like many living birds, and we hypothesise it was capable of only bursts of flight and perhaps gliding down from trees,” O’Connor said. The “gravest objection” to his theory, Darwin noted, was the lack at the time of fossils of transitional forms. The 1861 discovery in Bavaria of Archaeopteryx, combining reptile-like and bird-like features, provided support for Darwin’s theory.
Archeological Finds Archaeopteryx Dinosaur Fossils
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