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The Piltdown Chicken, 1999
The National Geographic Society held a press conference on October 15, 1999 to announce a major discovery: It had found a 125-million-year-old fossil in northeastern China that appeared to be the long-sought missing link between dinosaurs and birds. For over twenty years paleontologists had debated whether birds were descended from dinosaurs. This fossil seemed to provide conclusive proof they were.
The Piltdown Chicken
The Piltdown Chicken
In addition to the press conference, held at the National Geographic's corporate headquarters, the Society simultaneously published a glossy article about the find in its well-known magazine.
The fossil bird, when living, would have been about the size of a large chicken, or a turkey. But it would have been a turkey that bore the long tail of a dinosaur. It was this mixture of dinosaur and bird parts that made researchers believe they had found the dinosaur-bird missing link. As Christopher Sloan, author of the National Geographic article, enthusiastically wrote, "Its long arms and small body scream 'Bird!' Its long, stiff tail... screams 'Dinosaur!'"
What Sloan didn't realize at the time, was that the body and tail together should have screamed 'Fake!'
Xu Xing, a Chinese scientist who had initially helped to identify the fossil, eventually realized it was a fraud when he found a second fossil containing an exact, mirror-image duplicate of the Archaeoraptor's tail, but attached to a different body. Fossil stones, when taken from the ground, often cleave in two, producing two mirror-image sets of fossil slabs. Evidently someone had taken one of the slabs bearing the tail fossil and affixed it to a fossil of a bird, thereby producing a hybrid dinosaur-bird creature.
National Geographic published an admission of its mistake in March 2000 and a fuller analysis of how it had been duped in October of that year. It admitted red flags had been raised about the discovery at various points, but that it had failed to see them. More seriously, it acknowledged rushing its find into publication before more scholarly journals had the chance to peer-review the data.
U.S. News & World Report was the first to refer to the Archaeoraptor Liaoningensis forgery as the case of the Piltdown Chicken, alluding to the infamous Piltdown Man hoax of 1912.
Links and References
- Simons, Lewis M. "Report to Members: Archaeoraptor Fossil Trail." National Geographic (October 2000): 128-132.
- Sloan, Christopher P. "Feathers for T. rex?" National Geographic (November 1999): 98-107.
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