image: This is a life reconstruction of Qilinyu, a 423-million-year-old fish from the Kuanti Formation (late Ludlow, Silurian) of Qujing, Yunnan, in Silurian waters (drawn by Dinghua Yang). view more
Credit: Dinghua Yang
American Association for the Advancement of Science (AAAS)
image: This is a life reconstruction of Qilinyu, a 423-million-year-old fish from the Kuanti Formation (late Ludlow, Silurian) of Qujing, Yunnan, in Silurian waters (drawn by Dinghua Yang). view more
Credit: Dinghua Yang
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