Меловой период

Witts J.D., Whittle R.J., Wignall P.B., Crame J.A., Francis J.E., Newton R.J., Bowman V.C. (in press) Macrofossil evidence for a rapid and severe Cretaceous-Paleogene (K2-Pg) mass extinction in Antarctica // Nature Communications.

http://eprints.whiterose.ac.uk/99315/1/ ... eprint.pdf