Tucumilla Formation
| Tucumilla Formation | |
|---|---|
| Stratigraphic range: Tremadocian ~ | |
| Type | Geological formation |
| Lithology | |
| Primary | Sandstone |
| Other | Shale, siltstone |
| Location | |
| Coordinates | 21°00′S 65°00′W / 21.0°S 65.0°W |
| Approximate paleocoordinates | 47°12′S 127°42′W / 47.2°S 127.7°W |
| Region | Tarija Department |
| Country | Bolivia |
  Tucumilla Formation (Bolivia) | |
The Tucumilla Formation is a Tremadocian geologic formation of southern Bolivia. The sandstones, shales and siltstones crop out in the José María Avilés and Eustaquio Méndez Provinces.[1][2][3]
Fossil content
The formation has provided the following fossils:
- Apheoorthis samensis
- Notorthisina notoconcha
- Angelina sp.
- Asaphellus sp.
- Broeggeria sp.
- Bucania sp.
- Dictyonema sp.
- Finkelnburgia sp.
- Jujuyaspis sp.
- Kainella sp.
- Leptoplastides sp.
- Micragnostus sp.
- Parabolina sp.
- Richardsonella sp.
- Shumardia sp.
- Tropidodiscus sp.
See also
References
- ^ Cuesta de Iscayachi at Fossilworks.org
- ^ Cuesta de Erquis at Fossilworks.org
- ^ Cieneguillas at Fossilworks.org
Further reading
- V. Havlicek and L. Branisa. 1980. Ordovician brachiopods of Bolivia: Succession of assemblages, climate control, affinity to Anglo-French and Bohemian provinces. Rozpravy Ceskoslovenske Akademie Ved. Rada Matematickych a Prirodnich Ved. Academia Praha, Prague, Czechoslovakia 90(1):1-54
- A. Pribyl and J. Vanek. 1980. Ordovician trilobites of Bolivia. Rozpravy Ceskoslovenske Akademie Ved. Rada Matematickych a Prirodnich Ved. Academia Praha, Prague, Czechoslovakia 90(2):1-90