University of California. „Eocene Epoch”. University of California.
University of California. „Eocene Climate”. University of California.
University of California. „Oligocene”. University of California.
University of California. „Miocene”. University of California.
University of California. „Pliocene”. University of California.
University of California. „Pleistocene”. University of California. Архивирано из оригинала 24. 8. 2014. г. Приступљено 25. 4. 2015.CS1 одржавање: Формат датума (веза)
University of California. „Holocene”. University of California.
The evolution of the spelling of "Cenozoic" is reviewed in:
Harland, W. Brian; Armstrong, Richard L.; Cox, Allen V.; Craig, Lorraine E.; Smith, David G.; Smith, Alan G. (1990). „The Chronostratic Scale”. A Geologic Time Scale 1989. Cambridge, England, U.K.: Cambridge University Press. стр. 31. ISBN9780521387651.
Gibbard, P. L.; Head, M. J.; Walker, M. J. C. (2010). „Formal ratification of the Quaternary System/Period and the Pleistocene Series/Epoch with a base at 2.58 Ma”. Journal of Quaternary Science. 25 (2): 96—102. Bibcode:2010JQS....25...96G. doi:10.1002/jqs.1338.
Williams, C. J.; LePage, B. A.; Johnson, A. H.; Vann, D. R. (2009). „Structure, Biomass, and Productivity of a Late Paleocene Arctic Forest”. Proceedings of the Academy of Natural Sciences of Philadelphia. 158 (1): 107—127. S2CID130110536. doi:10.1635/053.158.0106.
Gibbard, P. L.; Head, M. J.; Walker, M. J. C. (2010). „Formal ratification of the Quaternary System/Period and the Pleistocene Series/Epoch with a base at 2.58 Ma”. Journal of Quaternary Science. 25 (2): 96—102. Bibcode:2010JQS....25...96G. doi:10.1002/jqs.1338.
Phillips, John (1840). „Palæozoic series”. Penny Cyclopaedia of the Society for the Diffusion of Useful Knowledge. 17. London, England: Charles Knight and Co. стр. 153—154. From pp. 153–154: "As many systems or combinations of organic forms as are clearly traceable in the stratified crust of the globe, so many corresponding terms (as Palæozoic, Mesozoic, Kainozoic, &c.) may be made, ... "
National Geographic Society (24. 1. 2017). „Eocene”. National Geographic. Архивирано из оригинала 08. 05. 2010. г. Приступљено 21. 06. 2022.CS1 одржавање: Формат датума (веза)
Williams, C. J.; LePage, B. A.; Johnson, A. H.; Vann, D. R. (2009). „Structure, Biomass, and Productivity of a Late Paleocene Arctic Forest”. Proceedings of the Academy of Natural Sciences of Philadelphia. 158 (1): 107—127. S2CID130110536. doi:10.1635/053.158.0106.
National Geographic Society (24. 1. 2017). „Eocene”. National Geographic. Архивирано из оригинала 08. 05. 2010. г. Приступљено 21. 06. 2022.CS1 одржавање: Формат датума (веза)
Jonathan Adams. „Pliocene climate”. Oak Ridge National Library. Архивирано из оригинала 25. 2. 2015. г.CS1 одржавање: Формат датума (веза)
University of California. „Pleistocene”. University of California. Архивирано из оригинала 24. 8. 2014. г. Приступљено 25. 4. 2015.CS1 одржавање: Формат датума (веза)