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Mayoan
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The Mayoan (Spanish: Mayoense) age is a period of geologic time from 11.8 to 10 Ma, within the Middle to Late Miocene epoch of the Neogene, used more specifically within the SALMA classification in South America. It follows the Laventan and precedes the Chasicoan age.[1]

Etymology

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The age is named after the Río Mayo Formation in the Golfo San Jorge Basin of Patagonia, Argentina.

Formations

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Mayoan is located in South America
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Locations of Mayoan formations
Formation
bold is type
Country Basin Notes
Río Mayo Formation  Argentina Golfo San Jorge Basin
Coquimbo Formation  Chile Tongoy Bay
Gran Bajo del Gualicho Formation  Argentina Colorado Basin
Huaylas Formation  Chile Parinacota Province
Mauri Formation  Bolivia Altiplano Basin
Navidad Formation  Chile Chilean Coast Range
Paraná Formation  Argentina Paraná Basin
Pebas Formation  Brazil
 Colombia
 Ecuador
 Peru
Amazon Basin
Pisco Formation  Peru Pisco Basin
Puerto Madryn Formation  Argentina Valdés Basin
Urumaco Formation  Venezuela Falcón Basin
Yecua Formation  Bolivia Paraná Basin

Fossil content

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References

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