Английская Википедия:Coquimbo Formation

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Шаблон:Short description Шаблон:Infobox rockunit Coquimbo Formation (Шаблон:Lang-es) is a Miocene to Middle Pleistocene sedimentary formation located in Coquimbo Region in Norte Chico, Chile. The lowermost unit belongs to the lower Miocene, with the third-deepest unit dated at 11.9 ± 1.0 Ma. The uppermost unit of the formation is estimated at 1.2 Ma. In the area of Tongoy, the Coquimbo Formation was deposited in an ancient bay that was formed in a graben or half-graben, with a normal fault dipping east. Sea level changes during the Holocene have caused erosion to cut several marine terraces into the formation.[1]

Fossil content

The following fossils have been found in the formation:

SALMA Group Fossils Notes
style="background-color: Шаблон:Period color;" rowspan=3 | Montehermosan Mammals Delphinus domeykoi, Megaptera hubachi, Pliopontos sp., ?Squalodon sp., Balaenidae indet. Шаблон:Center
Birds cf. Palaeospheniscus sp., Spheniscus sp., Diomedeidae indet., Spheniscidae indet. Шаблон:Center
Fish Carcharodon carcharias Шаблон:Center
style="background-color: Шаблон:Period color;" | Mayoan Cosmopolitodus hastalis Шаблон:Center

See also

Шаблон:Portal

References

Шаблон:Reflist

Further reading

  • C. Acosta Hospitaleche, J. Canto, and C. P. Tambussi. 2006. Pingüinos (Aves, Spheniscidae) en Coquimbo (Mioceno Medio-Plioceno Tardio), Chile y su vinculación con las corrientes oceánicas. Revista Española de Paleontología 21(1):115-122
  • Шаблон:Cite LSA

Шаблон:Geology of Chile