A study in 2015 analysing angiosperm fossils of 257 (families typically contain multiple genera) found K-Pg had on extinction rates.

Source: https://theconversation.com/flowering-plants-survived-the-dinosaur-killing-asteroid-and-may-outlive-us-213271

However Sir Laurie found Mr Zahawi had shown “insufficient regard for the genera principles of the ministerial code”.

Source: https://www.pressandjournal.co.uk/fp/politics/uk-politics/5332594/nadhim-zahawi-sacking/

I am particularly interested in the genera Cephalanthus a group of woody angiosperms with distributions from boreal to tropical zones.

Source: https://boingboing.net/2023/07/12/remembering-31-year-old-botanist-gabriel-trujillo.html