The first article
I'm just now reading and digesting
https://www.pnas.org/content/early/2019/03/27/1817407116
PDF:
https://www.pnas.org/content/pnas/early/2019/03/27/1817407116.full.pdf
Space/Science » in reply to Fossils found from the DAY of the asteroid impact
I'm just now reading and digesting
https://www.pnas.org/content/early/2019/03/27/1817407116
PDF:
https://www.pnas.org/content/pnas/early/2019/03/27/1817407116.full.pdf