== Eksterne henvisninger ==
{{Commonskat|Cenotes}}
* [http://www.geo.utexas.edu/zacaton/ Sistema Zacatón] {{Webarchive|url=https://web.archive.org/web/20090625002147/http://www.geo.utexas.edu/zacaton/ |date=25. juni 2009 }}
* [http://www.geo.utexas.edu/zacaton/DEPTHX/Mission2-Blogs/2007-03-08/articles_and_papers/Gary_and_Sharp2006.pdf Volcanic karstification of Sistema Zacaton, Mexico (Gary, Sharp, 2006)] {{Webarchive|url=https://web.archive.org/web/20110718072925/http://www.geo.utexas.edu/zacaton/DEPTHX/Mission2-Blogs/2007-03-08/articles_and_papers/Gary_and_Sharp2006.pdf |date=18. juli 2011 }}
* [http://www.smm.org/sln/ma/formation.html Stages in the Formation of a Cenote] {{Webarchive|url=https://web.archive.org/web/20190204010447/https://www.smm.org/sln/ma/formation.html |date= 4. februar 2019 }}
* [http://www.showcaves.com/english/explain/Karst/Doline.html Doline, Sinkhole, Cenote] {{Webarchive|url=https://web.archive.org/web/20200607074040/https://www.showcaves.com/english/explain/Karst/Doline.html |date= 7. juni 2020 }}
* [http://www.smm.org/sln/ma/cenote.html Cenotes of Chichén Itzá] {{Webarchive|url=https://web.archive.org/web/20181216074321/https://www.smm.org/sln/ma/cenote.html |date=16. december 2018 }}
Geologi