The Huayquerian () age is a period of
geologic time
The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochronolo ...
(9.0–6.8
Ma) within the
Late Miocene
The Late Miocene (also known as Upper Miocene) is a sub-epoch of the Miocene epoch (geology), Epoch made up of two faunal stage, stages. The Tortonian and Messinian stages comprise the Late Miocene sub-epoch, which lasted from 11.63 Ma (million ye ...
epoch of the
Neogene
The Neogene ( ,) is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period million years ago ( Mya) to the beginning of the present Quaternary Period million years ago. It is the second period of th ...
, used more specifically within the
SALMA classification. It follows the
Chasicoan and precedes the
Montehermosan
The Montehermosan age is a period of geologic time (6.8–4.0 Mya (unit), Ma) within the Miocene and Pliocene epochs of the Neogene used more specifically with South American Land Mammal Ages. It follows the Huayquerian and precedes the Chapadmalal ...
age.
Etymology
The age is named after the
Huayquerías Formation in the western
Cuyo Basin of northwestern Argentina that was later dated to the
Montehermosan
The Montehermosan age is a period of geologic time (6.8–4.0 Mya (unit), Ma) within the Miocene and Pliocene epochs of the Neogene used more specifically with South American Land Mammal Ages. It follows the Huayquerian and precedes the Chapadmalal ...
. The most complete Huayquerian fauna is found in the
Cerro Azul Formation, in Buenos Aires Province also referred to as Epecuén Formation.
Formations
Fossil content
Correlations
Notes and references
Notes
References
Bibliography
;Huayquerías Formation
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;Andalhuala Formation
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;Camacho Formation
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;Cerro Azul Formation
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;Chiquimil Formation
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;Las Flores Formation, Sierra del Tontal
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;Içá Formation
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;Iñapari Formation
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;India Muerta Formation
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;Ituzaingó Formation
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;Madre de Dios Formation
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;Maimará Formation
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;Mauri & Muyu Huasi Formations
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;Miramar Formation
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;El Morterito Formation
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;Navidad Formation
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;Palo Pintado Formation
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;Paraná Formation
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;Pebas Formation
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;Piquete Formation
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;Pisco Formation
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;Quehua Formation
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;Raigón Formation
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;Saldungaray Formation
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;Salicas Formation
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;Solimões Formation
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;Urumaco Formation
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{{SALMA
Miocene South America
Neogene Argentina