【摘 要】
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The abrupt appearance of animal phyla in the fossil record at the beginning of the Cambrian period,known as the Cambrian explosion[1],is the most dramatic chapt
【机 构】
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Department of Geology, North-West University,
【出 处】
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National Science Review
论文部分内容阅读
The abrupt appearance of animal phyla in the fossil record at the beginning of the Cambrian period,known as the Cambrian explosion[1],is the most dramatic chapter in the annals of animal evolutionary history.As early as 1909,the great paleontologist Charles D.Walcot discovered the Burgess Shale fauna in the Middle Cambrian Burgess Shale of
The abrupt appearance of animal phyla in the fossil record at the beginning of the Cambrian period, known as the Cambrian explosion [1], is the most dramatic chapter in the annals of animal evolutionary history. As early as 1909, the great paleontologist Charles D .Walcot discovered the Burgess Shale fauna in the Middle Cambrian Burgess Shale of
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叶飞,开国上将,1914年5月7日生于菲律宾吕宋岛奎松省,祖籍泉州南安县;1928年5月参加革命,1932年到闽东地区参与创建苏区和建立游击队,1935年起任中共闽东特委书记、闽东军政