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POST-EXTINCTION RECOVERY

Diversity on the rebound

The reduction in biodiversity after the end-Cretaceous mass extinction event did not instantaneously create evolutionary opportunities for planktonic protists. Survivors instead re-diversified in pulses that followed morphological innovations.

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Fig. 1: Following a loss of morphological and taxonomic diversity at the Cretaceous–Palaeogene (K–Pg) boundary, morphological complexity rebounded before taxonomic diversity.

Images adapted with permission from ref. 11, Smithsonian Institution Press; ref. 12,13,14, Cushman Foundation for Foraminiferal Research/Allen Press; ref. 15, The Micropaleontology Project, Inc.; and ref. 16, Geological Society of America (permission conveyed through Copyright Clearance Center, Inc.).

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Correspondence to Anne Weil or James W. Kirchner.

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Weil, A., Kirchner, J.W. Diversity on the rebound. Nat Ecol Evol 3, 873–874 (2019). https://doi.org/10.1038/s41559-019-0883-5

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