Zapata Formation
Zapata Formation (Spanish: Formación Zapata) is a sedimentary formation of Lower Cretaceous age in the Magallanes or Austral Basin of Argentina and Chile. Much of the formation is folded and faulted as consequence of the Andean orogeny.[1] In outcrops of the Zapata Formation near Torres del Paine, the southernmost fossil of the ichthyosaur genus Platypterygius has been found.[2][3]
| Zapata Formation Stratigraphic range: Berriasian-Hauterivian | |
|---|---|
| Type | Geological formation |
| Underlies | Punta Barrosa & Erezcano Formations |
| Overlies | Tobífera & Springhill Formations |
| Lithology | |
| Primary | Shale |
| Other | Turbiditic sandstone, pyrite |
| Location | |
| Coordinates | 51.1°S 73.3°W |
| Approximate paleocoordinates | 51.3°S 36.9°W |
| Region | Magallanes y la Antártica Chilena & Aysén Regions Santa Cruz Province |
| Country |  Chile Argentina |
| Extent | Magallanes or Austral Basin |
| Type section | |
| Named for | Cerro Zapata |
  Zapata Formation (Argentina) | |
References
- Fildani et al., 2008
- Pardo Pérez et al., 2012
- Páramo, 2018, p.16
Bibliography
- Fildani, Andrea, Romans, B.W., Fosdick, J.C., Crane, W.H., and Hubbard, S.M. (2008). Orogenesis of the Patagonian Andes as reflected by basin evolution in southernmost South America, in Spencer, J.E., and Titley, S.R., eds., Ores and orogenesis: Circum-Pacific tectonics, geologic evolution, and ore deposits: Arizona Geological Society Digest 22: 259-268
- Páramo Fonseca, María Eurídice. 2018. Restos apendiculares de un ictiosaurio oftalmosáurido del Barremiano inferior de Villa de Leiva, Colombia. Boletín de Geología 40. 15–30. Accessed 2019-02-06.
- Pardo Pérez, Judith; Eberhard Frey; Wolfgang Stinnesbeck; Marta S. Fernández; Luis Rivas; Christian Salazar, and Marcelo Leppe. 2012. An ichthyosaurian forefin from the Lower Cretaceous Zapata Formation of southern Chile: implications for morphological variability within Platypterygius. Palaeoclimate, Palaeobiology, Paleoenvironments 92. 287–294. Accessed 2016-08-30.
Further reading
- M. R. Schultz, A. Fildani, and M. Suarez. 2003. Occurrence of the southernmost South American ichthyosaur (Middle Jurassic), Parque Nacional Torres del Paine, Patagonia, southernmost Chile. Palaios 18:69-73
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