Santiago Formation, Bolivia

Last updated
Santiago Formation
Stratigraphic range: Sandbian-Katian
~460–450  Ma
Type Geological formation
Lithology
Primary Siltstone
Location
Coordinates 18°00′S65°00′W / 18.0°S 65.0°W / -18.0; -65.0 Coordinates: 18°00′S65°00′W / 18.0°S 65.0°W / -18.0; -65.0
Approximate paleocoordinates 45°24′S128°30′W / 45.4°S 128.5°W / -45.4; -128.5
Region Cochabamba Department
CountryBandera de Bolivia (Estado).svg  Bolivia
Extent Cordillera Oriental
Bolivia physical map.svg
Dark Green 004040 pog.svg
Santiago Formation, Bolivia (Bolivia)

The Santiago Formation is a Sandbian to Katian geologic formation of central Bolivia. The formation comprises gray quartzitic siltstones. [1]

Contents

Fossil content

The formation has provided the following fossils:

See also

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Santiago Formation may refer to:

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Pircancha Formation

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The Sella Formation is a Dapingian to Darriwilian geologic formation of southern Bolivia. The grey to green bioturbated siltstones interbedded with thin sandstone layers bear lenticular shell beds. Other parts of the formation contain yellow-green limy shales and grey sandy limestones. Coquinas often fill gutter casts and included brachiopods, trilobites, bivalves and nautiloids. The sediments were deposited in an open marine environment. The species Coxiconchia sellaensis was named after the formation.

La Ciénega Formation, Bolivia Geologic formation in Bolivia

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San Benito Formation, Bolivia Geologic formation in Bolivia

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Catavi Formation

The Catavi Formation is a Pridoli to Emsian geologic formation of northern and central Bolivia. The formation comprises a 456 m (1,496 ft) thick succession of fine-grained, olive to brown sandstones and siltstones, shales and black limestones deposited in a shallow to deep marine environment.

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References

  1. Santiago at Fossilworks.org

Further reading