Definition: The Chengjiang biota of Yunnan,China,documents the earliest extensiveradiation of the Metazoa recorded in the fossil record.澄江生物群Chéng Jiāng shēng wù qún這一舉世聞名的特異化石庫發(fā)現(xiàn)于云南澄江帽天山,距今約5.3億年,包括大量栩栩如生的奇異化石......(本文共 206 字) [閱讀本文] >>