Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer).
The cause of the end-Triassic extinction remains controversial. Here, the authors present U-Pb age data showing that magmatic activity occurred 100 kyr before the earliest known eruptions, which links to changes in climate and biotic records indicating the importance of understanding the intrusive record.