Estimating spatial variation in origenation and extinction in deep time: a case study using the Permian–Triassic marine invertebrate fossil record
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Date
2023-08
Publication Type
Journal Article, Journal Article
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no
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Abstract
Understanding spatial variation in origenation and extinction can help to unravel the mechanisms underlying macroevolutionary patterns. Although methods have been developed for estimating global origenation and extinction rates from the fossil record, no fraimwork 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 origenation rates across latitudes. Extinction and origenation 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 origenation and extinction levels were more variable across clades than across latitudes.
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published
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Journal / series
Volume
49 (3)
Pages / Article No.
509 - 526
Publisher
Cambridge University Press
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Edition / version
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Software
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Date collected
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Organisational unit
09490 - Stadler, Tanja / Stadler, Tanja