Coihaique Group

Coihaique Group
Coihaique Group
Stratigraphic range: Late Jurassic–Aptian
	File:Chilesaurus holotype cast.jpg Toqui Formation with Chilesaurus fossils
Type	Geologic group
Unit of	Aysén Basin
Sub-units	Apeleg Formation; Katterfeld Formation; Toqui Formation
Underlies	Divisadero Group
Overlies	Ibáñez Formation
Lithology
Primary	Shale, volcaniclastic rocks, sandstone
Other	Turbidite
Location
Region	Aysén Region, Patagonia
Country	Chile

The Coihaique Group is a group of geological formations in northwestern Patagonia. From top to bottom the formations that make the group are Apeleg, Katterfeld and Toqui. The contact between the formations of the group are diachronous with Katterfeld Formation interfingering with the formations on top and below it. The lower and upper boundaries of the group are unconformities formed by erosion. The older parts of Coihaique Group represent a marine transgression while the younger parts evidences a return to non-marine conditions.^[1]

Fossils in Toqui Formation

The rock formation preserves fossils from the Late Jurassic period of the Mesozoic Era.

Fossils of Chilesaurus (147 Ma) were found in the Aysén Region of Patagonia. It is an extinct genus of theropods in the family Tetanurae.^[2] The fossil record also comprises a sauropod Titanosaur, a Camarasaur and a Diplodocid.

References

^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
^ news.nationalgeographic.com National Geographic.com: "T. rex's Oddball Vegetarian Cousin Discovered", by Michael D. Lemonick, 2015-04-27.

Stub icon

This Chile location article is a stub. You can help Wikipedia by expanding it.

Stub icon

This article about a specific stratigraphic formation in South America is a stub. You can help Wikipedia by expanding it.

[1] Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).

[2] ws.nationalgeographic.com National Geographic.com: "T. rex's Oddball Vegetarian Cousin Discovered", by Michael D. Lemonick, 2015-04-27.

[1]

[2]

v t e Geology of Chile
Sedimentary basins	Altiplano Arauco Aysén Caldera Neuquén Magallanes Osorno–Llanquihue Pucatrihue Salar de Atacama Salta Santiago Temuco Valdivia
Faults	Atacama Fault Biobío-Aluminé Fault Cachet Fault Domeyko Fault El Arrayán Fault Futrono Fault Gastre Fault Lanalhue Fault Liquiñe-Ofqui Fault Magallanes-Fagnano Fault Mocha-Villarrica Fault Pichilemu Fault Reigolil-Pirihueico Fault San Ramón Fault Valeriano Fault
Batholiths	Coastal central Chile Elqui-Limarí Futrono-Riñihue North Patagonian Panguipulli South Patagonian Vicuña Mackenna
Metamorphic complexes	Bahía Mansa Belén Chañaral Choapa Chonos Cordillera Darwin Eastern Andes Mejillones Puerto Edén Punta de Choros Quebrada del Carrizo Trafún Tierra del Fuego
Terranes	Arequipa-Antofalla Chaitenia Chilenia Chiloé Cuyania Fitz Roy Madre de Dios Mejillonia Patagonia
Lua error in mw.title.lua at line 392: bad argument #2 to 'title.new' (unrecognized namespace name 'Portal'). • Lua error in mw.title.lua at line 392: bad argument #2 to 'title.new' (unrecognized namespace name 'Portal').

Coihaique Group

Fossils in Toqui Formation

See also

References

Navigation menu

Coihaique Group
Stratigraphic range: Late Jurassic–Aptian
File:Chilesaurus holotype cast.jpg Toqui Formation with Chilesaurus fossils
Type	Geologic group
Unit of	Aysén Basin
Sub-units	Apeleg Formation Katterfeld Formation Toqui Formation
Underlies	Divisadero Group
Overlies	Ibáñez Formation
Lithology
Primary	Shale, volcaniclastic rocks, sandstone
Other	Turbidite
Location
Region	Aysén Region, Patagonia
Country	Chile

Coihaique Group

Fossils in Toqui Formation

See also

References

Navigation menu

Search