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]

Contents

Etymology

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

Formations

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Locations of Mayoan formations
Formation
bold is type
CountryBasinNotes
Río Mayo Formation Flag of Argentina.svg  Argentina Golfo San Jorge Basin
[2]
Coquimbo Formation Flag of Chile.svg  Chile Tongoy Bay
[3]
Gran Bajo del Gualicho Formation Flag of Argentina.svg  Argentina Colorado Basin
[4]
Huaylas Formation Flag of Chile.svg  Chile Parinacota Province
[5]
Mauri Formation Flag of Bolivia.svg  Bolivia Altiplano Basin
[6]
Navidad Formation Flag of Chile.svg  Chile Chilean Coast Range
[7]
Paraná Formation Flag of Argentina.svg  Argentina Paraná Basin
[8]
Pebas Formation Flag of Brazil.svg  Brazil
Flag of Colombia.svg  Colombia
Flag of Ecuador.svg  Ecuador
Flag of Peru.svg  Peru
Amazon Basin
Pisco Formation Flag of Peru.svg  Peru Pisco Basin
Puerto Madryn Formation Flag of Argentina.svg  Argentina Valdés Basin
Urumaco Formation Flag of Venezuela.svg  Venezuela Falcón Basin
Yecua Formation Flag of Bolivia.svg  Bolivia Paraná Basin

Fossil content

GroupFossilsFormationNotes
Mammals Megathericulus patagonicus Río Mayo
Caraguatypotherium munozi , Epipeltephilus caraguensis Huaylas
Brujadelphis ankylorostris Pisco
Cardiatherium patagonicum , Kawas benegasorum , Notoziphius bruneti , Scirrotherium carinatum , Lagostomus (Lagostomopsis) sp. , Dolichotinae indet., Macraucheniidae indet., Mylodontinae indet., Neuryurini indet., Palaehoplophorini indet. Puerto
Madryn
cf. Theosodon sp. Yecua
Birds Kuntur cardenasi , Ramphastosula aguirrei , Sula brandi , S. figueroae Pisco
Madrynornis mirandus , Palaeospheniscus bergi , Accipitridae indet., Dendrocygninae indet., Psilopteridae indet. Puerto
Madryn
Reptiles Mourasuchus sp. , Pleurodira indet. Yecua
Fishes Cosmopolitodus hastalis Coquimbo
Loricariidae indet., Percomorpha indet., Siluriformes indet. Puerto
Madryn
cf. Ariidae indet., Teleostei indet. Yecua

References

  1. Paleo Database: Mayoan
  2. Ecosteguy et al., 2003
  3. Le Roux et al., 2006, p.49
  4. Reichler, 2010, p.181
  5. García et al., 1999, p.251
  6. Marshall & Sempere, 1991, p.636
  7. Finger et al., 2007, p.13
  8. Martín Pérez, 2013, p.51
  9. Antoine et al., 2016, p.56
  10. Wesselingh et al., 2006, p.304
  11. Brand et al., 2011
  12. Acosta Hospitaleche et al., 2007, p.301
  13. Linares, 2004, p.16
  14. Hernández et al., 2002, p.5
  15. Arroyo Pedregoso at Fossilworks.org
  16. Montoya Sanhueza et al., 2017
  17. Caragua at Fossilworks.org
  18. Lambert et al., 2017
  19. 1 2 3 Rincón Chico at Fossilworks.org
  20. 1 2 La Pastosa at Fossilworks.org
  21. Punta San Román at Fossilworks.org
  22. Playa El Doradillo at Fossilworks.org
  23. Yecua at Fossilworks.org
  24. Stucchi et al., 2015a
  25. Stucchi et al., 2015b
  26. Puerto Madryn Autodromo at Fossilworks.org
  27. Playa Villarino at Fossilworks.org
  28. 1 2 La Angostura, Margin of Piraí River at Fossilworks.org
  29. Tongoy area Unit 4 at Fossilworks.org

Bibliography

Río Mayo Formation
Coquimbo Formation
Gran Bajo del Gualicho Formation
Huaylas Formation
Mauri Formation
Navidad Formation
Paraná Formation
Pebas Formation
Pisco Formation
Puerto Madryn Formation
Urumaco Formation
Yecua Formation