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Padron:Paleoheno graphical timeline

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Talababa

  1. 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)
  2. "International Chronostratigraphic Chart" (PDF). International Commission on Stratigraphy.