Fish got their jaws millions of years earlier than previously thought
Meet the spiny, ancient Fanjingshania renovatais—likely the oldest
discovered fish ancestor with jaws. Laura Baias, Live Science
Ancient 'shark' from China is humans’ oldest jawed ancestor
Palaeontologists discover a 439-million-year-old 'shark' that forces
us to rethink the timeline of vertebrate evolution
Chinese Academy of Sciences, Eureka Alert, October 3, 2022
The paper is:
Andreev, P.S., Sansom, I.J., Li, Q., Zhao, W., Wang, J., Wang,
C.C., Peng, L., Jia, L., Qiao, T. and Zhu, M., 2022. Spiny
chondrichthyan from the lower Silurian of South China. Nature,
609(7929), pp.969-974.
Yours,
Paul H.