Show simple item record

dc.contributor.authorDePalma, Robert A.
dc.contributor.authorOleinik, Anton A.
dc.contributor.authorGurche, Loren P.
dc.contributor.authorBurnham, David A.
dc.contributor.authorKlingler, Jeremy J.
dc.contributor.authorMcKinney, Curtis J.
dc.contributor.authorCichocki, Frederick P.
dc.contributor.authorLarson, Peter L.
dc.contributor.authorEgerton, Victoria M.
dc.contributor.authorWogelius, Roy A.
dc.contributor.authorEdwards, Nicholas P.
dc.contributor.authorBergmann, Uwe
dc.contributor.authorManning, Phillip L.
dc.date.accessioned2022-02-09T16:02:54Z
dc.date.available2022-02-09T16:02:54Z
dc.date.issued2021-12-08
dc.identifier.citationDePalma, R.A., Oleinik, A.A., Gurche, L.P. et al. Seasonal calibration of the end-cretaceous Chicxulub impact event. Sci Rep 11, 23704 (2021). https://doi.org/10.1038/s41598-021-03232-9en_US
dc.identifier.urihttp://hdl.handle.net/1808/32515
dc.description.abstractThe end-Cretaceous Chicxulub impact triggered Earth’s last mass-extinction, extinguishing ~ 75% of species diversity and facilitating a global ecological shift to mammal-dominated biomes. Temporal details of the impact event on a fine scale (hour-to-day), important to understanding the early trajectory of mass-extinction, have largely eluded previous studies. This study employs histological and histo-isotopic analyses of fossil fish that were coeval with a unique impact-triggered mass-death assemblage from the Cretaceous-Paleogene (KPg) boundary in North Dakota (USA). Patterns of growth history, including periodicity of ẟ18O and ẟ13C and growth band morphology, plus corroborating data from fish ontogeny and seasonal insect behavior, reveal that the impact occurred during boreal Spring/Summer, shortly after the spawning season for fish and most continental taxa. The severity and taxonomic symmetry of response to global natural hazards are influenced by the season during which they occur, suggesting that post-impact perturbations could have exerted a selective force that was exacerbated by seasonal timing. Data from this study can also provide vital hindsight into patterns of extant biotic response to global-scale hazards that are relevant to both current and future biomes.en_US
dc.publisherNature Researchen_US
dc.rights© The Author(s) 2021. This article is licensed under a Creative Commons Attribution 4.0 International License.en_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.subjectEvolutionen_US
dc.subjectEnvironmental sciencesen_US
dc.subjectNatural hazardsen_US
dc.subjectAstronomy and planetary scienceen_US
dc.titleSeasonal calibration of the end-cretaceous Chicxulub impact eventen_US
dc.typeArticleen_US
kusw.kuauthorGurche, Loren P.
kusw.kuauthorBurnham, David A.
kusw.kudepartmentBiodiversity Instituteen_US
dc.identifier.doi10.1038/s41598-021-03232-9en_US
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US
dc.identifier.pmidPMC8655067en_US
dc.rights.accessrightsopenAccessen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

© The Author(s) 2021. This article is licensed under a Creative Commons Attribution 4.0 International License.
Except where otherwise noted, this item's license is described as: © The Author(s) 2021. This article is licensed under a Creative Commons Attribution 4.0 International License.