The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.
- J. A. Clarke and D. T. Ksepka. 2007. Paleogene equatorial penguins challenge the proposed relationship between biogeography, diversity and Cenozoic climate change. Proceedings of the Academy of Natural Sciences 104(28):11545-11550
- WoRMS (2013). Sphenisciformes. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=196033
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