The end-Cretaceous plant extinction: Heterogeneity, ecosystem transformation, and insights for the future DOI Creative Commons
Peter Wilf, Mónica R. Carvalho, Elena Stiles

et al.

Cambridge Prisms Extinction, Journal Year: 2023, Volume and Issue: 1

Published: Jan. 1, 2023

The Cretaceous-Paleogene (K-Pg) mass extinction was geologically instantaneous, causing the most drastic rates in Earth's History. rapid species losses and environmental destruction from Chicxulub impact at 66.02 Ma made K-Pg comparable past event to today's projected "sixth" extinction. famously eliminated major clades of animals plankton. However, for land plants, primarily occurred among observed regional studies but left no global trace family or major-clade level, leading questions about whether there a significant plant We review emerging paleobotanical data Americas argue that evidence strongly favors profound (generally >50%), geographically heterogeneous recovery consistent with heterogeneity appears reflect several factors, including distance site marine latitudinal buffering winter. ensuing transformations have affected all life, true angiosperm dominance world's forests, birth hyperdiverse Neotropical rainforest biome, evolutionary radiations many crown clades. Although worst outcomes are still preventable, sixth could mirror by eliminating numbers geologic instant, impoverishing eventually transforming terrestrial ecosystems while having little effect on plant-family diversity.

Language: Английский

No phylogenetic evidence for angiosperm mass extinction at the Cretaceous–Palaeogene (K-Pg) boundary DOI Creative Commons
Jamie Thompson, Santiago Ramírez‐Barahona

Biology Letters, Journal Year: 2023, Volume and Issue: 19(9)

Published: Sept. 1, 2023

The Cretaceous-Palaeogene mass extinction event (K-Pg) witnessed upwards of 75% animal species going extinct, most notably among these are the non-avian dinosaurs. A major question in macroevolution is whether this influenced rise flowering plants (angiosperms). fossil record suggests that K-Pg had a strong regional impact on angiosperms with up to extinctions, but only minor rates lineages (families and orders). Phylogenetic evidence for angiosperm dynamics through time remains unexplored. By analysing two mega-phylogenies containing approximately 32 000-73 000 extant species, here we show relatively constant throughout geological no at boundary. Despite high species-level observed record, our results support macroevolutionary resilience via survival higher lineages.

Language: Английский

Citations

17
The end-Cretaceous plant extinction: Heterogeneity, ecosystem transformation, and insights for the future DOI Creative Commons
Peter Wilf, Mónica R. Carvalho, Elena Stiles

et al.

Cambridge Prisms Extinction, Journal Year: 2023, Volume and Issue: 1

Published: Jan. 1, 2023

The Cretaceous-Paleogene (K-Pg) mass extinction was geologically instantaneous, causing the most drastic rates in Earth's History. rapid species losses and environmental destruction from Chicxulub impact at 66.02 Ma made K-Pg comparable past event to today's projected "sixth" extinction. famously eliminated major clades of animals plankton. However, for land plants, primarily occurred among observed regional studies but left no global trace family or major-clade level, leading questions about whether there a significant plant We review emerging paleobotanical data Americas argue that evidence strongly favors profound (generally >50%), geographically heterogeneous recovery consistent with heterogeneity appears reflect several factors, including distance site marine latitudinal buffering winter. ensuing transformations have affected all life, true angiosperm dominance world's forests, birth hyperdiverse Neotropical rainforest biome, evolutionary radiations many crown clades. Although worst outcomes are still preventable, sixth could mirror by eliminating numbers geologic instant, impoverishing eventually transforming terrestrial ecosystems while having little effect on plant-family diversity.

Language: Английский

Citations

13