Earth:Anzaldo Formation
From HandWiki
| Anzaldo Formation Stratigraphic range: Katian ~460–446 Ma | |
|---|---|
| Type | Geological formation |
| Unit of | Cochabamba Group |
| Underlies | San Benito Formation |
| Overlies | Capinota Formation |
| Lithology | |
| Primary | Sandstone |
| Location | |
| Coordinates | [ ⚑ ] : 17°48′S 65°48′W / 17.8°S 65.8°W |
| Paleocoordinates | [ ⚑ ] 45°06′S 127°30′W / 45.1°S 127.5°W |
| Region | Cochabamba Department |
| Country | Bolivia |
| Extent | Cordillera Oriental |
  Anzaldo Formation (Bolivia) | |
The Anzaldo Formation is a Katian geologic formation of central Bolivia. The formation belongs to the Cochabamba Group, overlies the Capinota Formation and is overlain by the San Benito Formation. The formation is famous for being where Sacabambaspis, a jawless fish that has become a popular internet meme in recent years, was discovered.[1]
Fossil content
The formation has provided the following fossils:
Fish
- Pteraspidomorphi
- Huemacaspis bistrami[2]
- Sacabambaspis janvieri[3][4]
Trilobites
- Leiostegina inexpectans[5]
Bivalves
Gastropods
- Gyrospira tourteloti[5]
Lingulida
See also
References
Bibliography
- Pradel, A.; Sansom, I. J.; Gagnier, P.-Y.; Cespedes, R.; Janvier, P. (2007), "The tail of the Ordovician fish Scabambaspis", Biology Letters 3 (1): 72–75, doi:10.1098/rsbl.2006.0557, PMID 17443969
- Emig, C. C.; Herrera, Z. (2006), "Dignomia munsterii (Brachiopoda, Lingulata) from the Ordovician of Bolivia, with redescription of the genus", Geodiversitas 28: 227–237
- Gagnier, P. Y.; Blieck, A.; Emig, C. C.; Sempere, T.; Vachard, D.; Vanguestaine, M. (1996), "New paleontological and geological data on the Ordovician and Silurian of Bolivia", Journal of South American Earth Sciences 9 (5): 329–347, doi:10.1016/S0895-9811(96)00018-1, Bibcode: 1996JSAES...9..329G
- Branisa, L (1965), "Los fósiles guias de Bolivia: I. Paleozoico", Boletín de Servicio Geologico de Bolivia la Paz, Bolivia 6: 1–282
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