The Santacrucian age is a period of
geologic time (17.5 – 16.3
Ma) within the
Early Miocene
The Early Miocene (also known as Lower Miocene) is a sub-epoch of the Miocene Epoch made up of two stages: the Aquitanian and Burdigalian stages.
The sub-epoch lasted from 23.03 ± 0.05 Ma to 15.97 ± 0.05 Ma (million years ago). It was prece ...
epoch of the
Neogene
The Neogene ( ), informally Upper Tertiary or Late Tertiary, 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 Mya. ...
, used more specifically with
SALMA classification in South America. It follows the
Colhuehuapian The Colhuehuapian age is a period of geologic time (21.0–17.5 Ma) within the Early Miocene epoch of the Neogene, used more specifically within the SALMA classification in South America. It follows the Deseadan and precedes the Santacrucian ag ...
and precedes the
Friasian The Friasian age is a period of geologic time (16.3–15.5 Ma) within the Early Miocene epoch of the Neogene, used more specifically within the SALMA classification of South America. It follows the Santacrucian and precedes the Colloncuran age.
...
age.
Paleo Database: Santacrucian
/ref>
Etymology
The age is named after the Santa Cruz Formation
The Santa Cruz Formation is a geological formation in the Magallanes/Austral Basin in southern Patagonia in Argentina and in adjacent areas of Chile. It dates to the late Early Miocene epoch, and is contemporaneous with eponymous Santacrucian ...
in the Austral/Magallanes Basin of southern Patagonia
Patagonia () refers to a geographical region that encompasses the southern end of South America, governed by Argentina and Chile. The region comprises the southern section of the Andes Mountains with lakes, fjords, temperate rainforests, and gl ...
, Argentina and Chile.
Formations
Fossils
References
Bibliography
;Santa Cruz Formation
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;Aisol Formation
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;Cantaure Formation
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;Castillo Formation
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;Cerro Boleadores Formation
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;Chaguaramas Formation
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;Chilcatay Formation
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;Cura-Mallín Group
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;Gran Bajo del Gualicho Formation
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;Jimol Formation
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;Mariño Formation
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;Pinturas Formation
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;Río Yuca Formation
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{{SALMA
Miocene South America
Neogene Argentina
.017Santacrucian