Tucumilla Formation

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]

Tucumilla Formation
Stratigraphic range: Tremadocian
~488–479 Ma
TypeGeological formation
Lithology
PrimarySandstone
OtherShale, siltstone
Location
Coordinates21.0°S 65.0°W / -21.0; -65.0
Approximate paleocoordinates47.2°S 127.7°W / -47.2; -127.7
RegionTarija Department
Country Bolivia
Tucumilla Formation (Bolivia)

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

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
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.