Trends in size changes in the coccolithophorids, calcareous nannoplankton, during the Mesozoic: A pilot study
Trends in size changes in the coccolithophorids, calcareous nannoplankton, during the Mesozoic: A pilot study
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中生代球石藻、钙质微浮游生物的大小变化趋势：一项试点研究
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
S. Boyd
中科院分区：
文献类型：
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作者：
M. Aubry;D. Bord;L. Beaufort;A. Kahn;S. Boyd
我们对侏罗纪和白垩纪的球粒岩尺寸变化历史进行了初步分析。这基本上是基于文献数据的汇编。结果表明，从早侏罗世到圣东纪，球岩石的平均尺寸逐渐增大，到坎帕纪稳定，到马斯特里希特纪逐渐减小。值得注意的是，这种大小历史与中生代球石虫的多样性（物种丰富度）历史相似，并构成了Cope规则的例证。随着时间的推移，平均大小的变化幅度似乎一直很小，这可能是由于其他更大的、同时期的钙质纳米浮游生物群的竞争。
We have conducted a preliminary analysis of the history of size change of coccoliths through the Jurassic and Cretaceous. This is essentially based on a compilation of literature data. The results demonstrate that the average size of coccoliths has increased from early Jurassic through the Santonian, stabilized until the Campanian and decreased during the Maastrichtian. Remarkably, this size history parallels the diversity (species richness) history of the Mesozoic Coccolithophorids, and constitutes an illustration of Cope’s rule . The amplitude of change of the average size through time appears to have remained small, which may result from competition by other, larger, contemporaneous calcareous nannoplanktonic groups.