No phylogenetic evidence for angiosperm mass extinction at the Cretaceous–Palaeogene (K-Pg) boundary DOI
Jamie Thompson, Chris Venditti

Published: Sept. 16, 2024

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. Image credit: [Rhus nigricans (fossil leaf) (Green River Formation, Eocene; Utah, USA). James St. John, Wikimedia Commons.](https://commons.wikimedia.org/wiki/File:Rhus_nigricans_(fossil_leaf)_(Green_River_Formation,_Eocene;_Utah,_USA)_2_(44366947535).jpg)

Language: Английский

The meaning of mass extinctions and what the fossil record tells us about angiosperm survival at K-Pg: a reply to Hagen (2024) DOI Creative Commons
Jamie Thompson, Santiago Ramírez‐Barahona

Biology Letters, Journal Year: 2024, Volume and Issue: 20(8)

Published: Aug. 1, 2024

Last year, we published research using phylogenetic comparative methods (PCMs) to reveal no evidence for elevated lineage-level extinction rates in angiosperms across K-Pg (Thompson JB, Ramírez-Barahona S. 2023 No angiosperm mass at the Cretaceous–Palaeogene (K-Pg) boundary. Biol. Lett. 19 , 20230314. ( https://doi.org/10.1098/rsbl.2023.0314 )), results that are step with global fossil record. In a critique of our paper (Hagen ER. 2024 A Thompson and (2023) or: how I learned stop worrying love 20 2020240039 https://doi.org/10.1098/rsbl.2024.0039 simulation work is presented argue erred methodological choices interpretations, should have deferred evidence. opinion, underlying this poor on simulations philosophical problems surrounding definition event, which leads incorrect interpretations both record PCMs. We further deferring one source favour other shuts door important evolutionary questions.

Language: Английский

Citations

2
No phylogenetic evidence for angiosperm mass extinction at the Cretaceous–Palaeogene (K-Pg) boundary DOI
Jamie Thompson, Chris Venditti

Published: Sept. 16, 2024

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. Image credit: [Rhus nigricans (fossil leaf) (Green River Formation, Eocene; Utah, USA). James St. John, Wikimedia Commons.](https://commons.wikimedia.org/wiki/File:Rhus_nigricans_(fossil_leaf)_(Green_River_Formation,_Eocene;_Utah,_USA)_2_(44366947535).jpg)

Language: Английский

Citations

0