Gamoneda Formation

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Gamoneda Formation
Stratigraphic range: Emsian
~409–392 Ma
TypeGeological formation
Thickness~340 m (1,120 ft)
Lithology
PrimarySandstone, siltstone
OtherShale
Location
Coordinates21°30′S 64°48′W / 21.5°S 64.8°W / -21.5; -64.8Coordinates: 21°30′S 64°48′W / 21.5°S 64.8°W / -21.5; -64.8
Approximate paleocoordinates66°30′S 98°24′W / 66.5°S 98.4°W / -66.5; -98.4
RegionTarija Department
Country Bolivia
ExtentCordillera Oriental
Type section
Named for
Gamoneda Formation is located in Bolivia
Gamoneda Formation
Gamoneda Formation
Gamoneda Formation (Bolivia)

The Gamoneda Formation is an Emsian geologic formation of southern Bolivia. The approximately 340 metres (1,120 ft) thick formation comprises marine micaceous grey siltstones and burrowed grey sandstones and shales.[1][2][3][4][5]

Fossil content[]

The formation has provided the following fossils:

See also[]

References[]

Further reading[]

  • N. Eldredge and L. Branisa. 1980. Calmoniid trilobites of the Lower Devonian Scaphiocoelia Zone of Bolivia, with remarks on related species. Bulletin of the American Museum of Natural History 165(2):181-289
  • P. E. Isaacson. 1977. Devonian stratigraphy and brachiopod paleontology of Bolivia. part A: Orthida and Strophomenida. Palaeontographica Abteilung A 155(5-6):133-192
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