アメリカ自然史博物館のインスタグラム(amnh) - 6月25日 00時47分

Found in 1873 near Solnhofen, Germany, this was the first fossil to show the complete wings of a pterosaur. Unearthed from a bed of limestone, this remarkably well-preserved skeleton belonged to Rhamphorhynchus muensteri, a long-tailed, dagger-toothed pterosaur from the Late Jurassic. The fine sediment fossilized not just the bones, but the tissues that formed the wing surface. The animal’s wings were partly folded, forming wrinkles that can still be seen.
See many more pterosaur fossils in the exhibition Pterosaurs: Flight in the Age of Dinosaurs, now open at the Museum. #pterosaurs #amnh

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