Exited to see this. Can’t wait for the publication later this year to learn more on dating. Here’s a blurb from the Live Science article.
This first-century gospel fragment was written on a sheet of papyrus that was later reused to create a mask that was worn by a mummy. Although the mummies of Egyptian pharaohs wore masks made of gold, ordinary people had to settle for masks made out of papyrus (or linen), paint and glue. Given how expensive papyrus was, people often had to reuse sheets that already had writing on them.
Impact and Import?
“A fragment from before AD 80 would establish that the Gospel of Mark had not only been written within 50 years of Jesus’ death and resurrection, but that it would have already begun to circulate widely.”
See here for more details.