Pircancha Formation
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Pircancha Formation | |
---|---|
Stratigraphic range: Floian-Dapingian ~ | |
Type | Geological formation |
Thickness | 1,800 m (5,900 ft) |
Lithology | |
Primary | Mudstone |
Other | Shale, sandstone, pyrite |
Location | |
Coordinates | 21°00′S 65°00′W / 21.0°S 65.0°W |
Approximate paleocoordinates | 45°18′S 129°06′W / 45.3°S 129.1°W |
Region | Tarija Department |
Country | ![]() |
The Pircancha Formation is a Floian to Dapingian geologic formation of southern Bolivia. The green mudstones, shales and sandstones were deposited in a shallow to open marine environment.[1][2] The fossil Pircanchaspis rinconensis is named after the formation.
Fossil content
The formation has provided the following fossils:
See also
References
- ^ "Rincon", "Escuela Seccional de Puesto Grande" at Fossilworks.org
- ^ Pircancha Fm., Tarija and Chilcayo at Fossilworks.org
- ^ Aubrechtová, 2015
Bibliography
- Aubrechtová, Martina. 2015. A revision of the Ordovician cephalopod Bactrites sandbergeri Barrande: systematic position and palaeobiogeography of Bactroceras. Geobios 48(3). 193–211. Accessed 2019-03-03.
Further reading
- B.-D. Erdtmann, B. Weber, H.-P. Schultze and S. Egenhoff. 2000. A possible agnathan plate from the lower Arenig (Lower Ordovician) of South Bolivia. Journal of Vertebrate Paleontology 20(2):394-399
- M. Toro and S. Fernandez. 1979. Los fósiles de la formación Pircancha aflorante en Chilcayo, Provincia Méndez - Depto. Tarija. Revista de la Academia Nacional de Ciencas de Bolivia 163-169
Categories:
- Pages using gadget WikiMiniAtlas
- Coordinates on Wikidata
- Geologic formations of Bolivia
- Ordovician System of South America
- Ordovician Bolivia
- Dapingian
- Floian
- Mudstone formations
- Shale formations
- Sandstone formations
- Open marine deposits
- Shallow marine deposits
- Ordovician southern paleotemperate deposits
- Paleontology in Bolivia
- Geography of Tarija Department