What looks like the dusty imprint of a moth are actually the remains of creatures that roamed the Earth’s oceans around 485 million years ago: The trilobites documented in Zhenxiong in southwest China’s Yunnan Province are providing researchers with new insights into the extinct class of marine creatures. The discovery by scientists from Peking University, the Nanjing Institute of Geology and Paleontology of the Chinese Academy of Sciences and the Xi’an Geological Survey Center was recently published in the journal Palaeoworld.