Since the early 1980s, several prominent scientists have charged that the two Archaeopteryx fossils with clearly visible feathers are forgeries. Allegedly, thin layers of cement were spread on the mating surfaces (slab and counterslab) of two fossils of a chicken-size dinosaur, called Compsognathus (komp-sog-NAY-thus). Bird feathers were then imprinted into the wet cement.
The two fossils with feathers were “found” and sold for high prices by Karl Häberlein (in 1861 for 700 pounds) and his son, Ernst (in 1877 for 20,000 gold marks), just as Darwin’s theory and book, The Origin of Species (1859), were gaining popularity. While some German experts thought that the new (1861) fossil was a forgery, the British Museum (Natural History) bought it sight unseen. (In the preceding century, fossil forgeries from limestone quarries were common in that region of Germany.)
Is Archaeopteryx a forgery? Honest disagreements were possible until 1986, when a definitive test was performed. An x-ray resonance spectrograph of the British Museum fossil showed that the finer-grained material containing the feather impressions differed significantly from the rest of the coarser-grained fossil slab. The chemistry of this “amorphous paste” also differed from the crystalline rock in the famous fossil quarry in Bavaria, Germany, where Archaeopteryx supposedly was found. Few responses have been made to this latest, and probably conclusive, evidence. Read more here.
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