Estimating spatial variation in origination and extinction in deep time: a case study using the Permian–Triassic marine invertebrate fossil record

IF 2.6 2区地球科学 Q2 BIODIVERSITY CONSERVATION

Paleobiology Pub Date : 2023-02-10 DOI:10.1017/pab.2023.1

B. Allen, M. Clapham, E. Saupe, P. Wignall, D. J. Hill, A. Dunhill

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引用次数: 1

Abstract

Abstract. Understanding spatial variation in origination and extinction can help to unravel the mechanisms underlying macroevolutionary patterns. Although methods have been developed for estimating global origination and extinction rates from the fossil record, no framework exists for applying these methods to restricted spatial regions. Here, we test the efficacy of three metrics for regional analysis, using simulated fossil occurrences. These metrics are then applied to the marine invertebrate record of the Permian and Triassic to examine variation in extinction and origination rates across latitudes. Extinction and origination rates were generally uniform across latitudes for these time intervals, including during the Capitanian and Permian–Triassic mass extinctions. The small magnitude of this variation, combined with the possibility of its attribution to sampling bias, cautions against linking any observed differences to contrasting evolutionary dynamics. Our results indicate that origination and extinction levels were more variable across clades than across latitudes.

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深层起源和灭绝的空间变化:以二叠纪-三叠纪海洋无脊椎动物化石记录为例

摘要了解起源和灭绝的空间变化有助于揭示宏观进化模式的潜在机制。尽管已经开发了根据化石记录估计全球起源和灭绝率的方法，但还没有将这些方法应用于有限空间区域的框架。在这里，我们使用模拟化石出现情况来测试三种区域分析指标的有效性。然后将这些指标应用于二叠纪和三叠纪的海洋无脊椎动物记录，以检查不同纬度的灭绝和起源率的变化。在这些时间间隔内，不同纬度地区的灭绝和起源率通常是一致的，包括在凯德阶和二叠纪-三叠纪大灭绝期间。这种变化的幅度很小，再加上其归因于抽样偏差的可能性，提醒人们不要将任何观察到的差异与对比的进化动力学联系起来。我们的研究结果表明，不同分支的起源和灭绝水平比不同纬度的变化更大。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Paleobiology 地学-古生物学

CiteScore

5.30

自引率

3.70%

发文量

审稿时长

>12 weeks

期刊介绍： Paleobiology publishes original contributions of any length (but normally 10-50 manuscript pages) dealing with any aspect of biological paleontology. Emphasis is placed on biological or paleobiological processes and patterns, including macroevolution, extinction, diversification, speciation, functional morphology, bio-geography, phylogeny, paleoecology, molecular paleontology, taphonomy, natural selection and patterns of variation, abundance, and distribution in space and time, among others. Taxonomic papers are welcome if they have significant and broad applications. Papers concerning research on recent organisms and systems are appropriate if they are of particular interest to paleontologists. Papers should typically interest readers from more than one specialty. Proposals for symposium volumes should be discussed in advance with the editors.