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在大规模灭绝后,后巴列奥纪海洋属的寿命增加
Arnold I Miller1, Michael Foote
1Department of Geology, University of Cincinnati, Post Office Box 210013, Cincinnati, OH 45221-0013, USA. arnold.miller@uc.edu
概括
在大规模灭绝后产生的海洋种类表现出延长的地质寿命,特别是在古世后的时代. 这表明受灭绝事件影响的不同多样化动态.
科学领域:
- 古生物学的古生物学
- 海洋生物学 海洋生物学
- 进化生物学 进化生物学
背景情况:
- 在大规模灭绝后的恢复期间产生的海洋类型通常表现出更广泛的地理范围.
- 海洋种类的地理范围和时间寿命之间存在相关性.
- 这表明恢复类可能在地质上异常长寿.
研究的目的:
- 为了调查在大规模灭绝恢复期间产生的海洋种群是否确实在地质上寿命更长.
- 为了分析整个法内罗纪时期的海洋属队伍的寿命.
- 为了确定古老生态和后古老生态时代之间的多样化动态的潜在差异.
主要方法:
- 对海洋属群体的分析,这些群体起源于整个法内罗纪时期的连续亚阶段.
- 评估这些群体的地质寿命.
- 恢复队列与其他队列之间的寿命的统计比较.
主要成果:
- 发现一些大规模灭绝恢复队伍的寿命比其他队伍长得多.
- 这种延长寿命的现象主要在古世后的时代被观察到.
- 这种效应在起源于古生物学时代的队列中并未始终被观察到.
结论:
- 大规模灭绝恢复队伍可以表现出延长的地质寿命,支持以前的假设.
- 海洋分类物种多样化的动态在古生物和后古生物时代之间有所不同.
- 灭绝事件在塑造海洋生物的长期进化轨迹方面发挥着重要作用.
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