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在地质历史的漫长岁月中,生物界发生过多次大规模的绝灭事件,地质古生物学家早就认识到了,却长期未能引起重视.这主要是由于长期以来人们一直信奉渐变论和均变论,把逐步、平稳的生物演化看作是生物历史的主旋律,而忽视了灾变事件及其在生物历程中的重大作用.
新灾变论再受关注
【摘 要】
：
在地质历史的漫长岁月中,生物界发生过多次大规模的绝灭事件,地质古生物学家早就认识到了,却长期未能引起重视.这主要是由于长期以来人们一直信奉渐变论和均变论,把逐步、平
【出 处】
：
科技文萃
【发表日期】
：
2000年5期
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