One Billion-Year-Old Fossil Could Be The Oldest
Multicellular Animal. David Bressan, Forbes, April 30, 2021
https://www.forbes.com/sites/davidbressan/2021/04/30/one-billion-year-old-fossil-could-be-the-oldest-multicellular-animal/
The open access paper is:
Strother, P.K., Brasier, M.D., Wacey, D., Timpe, L.,
Saunders, M. and Wellman, C.H., 2021. A possible
billion-year-old holozoan with differentiated
multicellularity. Current Biology.
https://www.sciencedirect.com/science/article/pii/S0960982221004243
https://www.cell.com/current-b