DescriptionExtinction Intensity(in Chinese).jpg 此幅图表显示了各个时期在属的层面上物种的灭绝强度，即一个时期灭绝的物种的属的数量占该时期物种总属量的比重。图表数据来源于罗德与穆勒（2005年补充材料），并依据Sepkoski所著《海洋动物化石汇编》(Compendium...
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extracted image: "The No. 1A Folding Pocket Kodak" in 1900 - from, The British journal of photography (IA britishjournalof47unse) (page 136 crop).jpg....
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