Comment in

• New ages for the last Australian megafauna: continent-wide extinction about 46,000 years ago.

  Roberts RG, Flannery TF, Ayliffe LK, Yoshida H, Olley JM, Prideaux GJ, Laslett GM, Baynes A, Smith MA, Jones R, Smith BL. Roberts RG, et al. Science. 2001 Jun 8;292(5523):1888-92. doi: 10.1126/science.1060264. Science. 2001. PMID: 11397939