Padron:Paleogene graphical timeline

Talababa

  1. Retallack, G. J. (1997). "Neogene Expansion of the North American Prairie". PALAIOS. 12 (4): 380–390. doi:10.2307/3515337. JSTOR 3515337. Nakuha noong 2008-02-11.{{cite journal}}: CS1 maint: date auto-translated (link)
  2. Zachos, J. C.; Kump, L. R. (2005). "Carbon cycle feedbacks and the initiation of Antarctic glaciation in the earliest Oligocene". Global and Planetary Change. 47 (1): 51–66. Bibcode:2005GPC....47...51Z. doi:10.1016/j.gloplacha.2005.01.001.{{cite journal}}: CS1 maint: date auto-translated (link)