为了颂扬古老的…非常古老的

还有什么比这只神奇的蜻蜓更好的方式来纪念国家化石日呢！在德国的索伦霍芬发现了这样一个条件如此精美的恐龙，这是很罕见的，那里的石灰岩沉积物保存了一些迄今为止发现的最详细的化石，包括被称为始祖鸟的类鸟恐龙。这只蜻蜓大约在1.5亿年前的侏罗纪时期被保存在索伦霍芬石灰岩中。它宽约5.5英寸。
原文：
What better way to honor National Fossil Day than with this amazing dragonfly! It's rare to find one in such exquisite condition, but this one was discovered in Solnhofen, Germany, where limestone deposits preserved some of the most detailed fossils ever found—including the birdlike dinosaur called Archaeopteryx. This dragonfly was preserved in the Solnhofen limestone about 150 million years ago in the Jurassic Period. It measures about 5.5 inches across.
《© Ingo Arndt/Minden Pictures》