Balumtun Sandstone

The Balumtun Sandstone is a geologic formation in Chiapas, Mexico. The formation is up to 760 metres thick, and consists of gray sandstone, that were deposited during the Upper Aquitanian stage of the Early Miocene.^[1]

Balumtun Sandstone
Stratigraphic range: Aquitanian ~23–22.5 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Formation
Unit of	Río Concepción Group
Underlies	Tulijá Formation
Overlies	Mazantic Shale
Thickness	760 metres
Lithology
Primary	Sandstone
Other	Conglomerate
Location
Coordinates	17.1°N 92.7°W / 17.1; -92.7
Approximate paleocoordinates	17.7°N 89.0°W / 17.7; -89.0
Region	Chiapas
Country	Mexico
Type section
Named for	Balumtun

See also

• List of fossiliferous stratigraphic units in Mexico
• Mexican amber

References

1. Carbot-Chanona, Gerardo; Rivera-Velázquez, Gustavo; Jiménez-Hidalgo, Eduardo; Reynoso, Víctor Hugo (December 2020). "The first Pan-Carettochelys turtle in the Neogene of the American continent and its paleobiogeographical relevance". Journal of South American Earth Sciences. 104: 102925. Bibcode:2020JSAES.10402925C. doi:10.1016/j.jsames.2020.102925. S2CID 224976641.

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.

Further reading

• M. d. C. Perrilliat, F. J. Vega, and M. A. Coutiño. 2010. Miocene mollusks from the Simojovel area in Chiapas, southwestern Mexico. Journal of South American Earth Sciences 30:111-119
• S. D. Webb, B. L. Beatty, and G. Poinar, Jr. 2003. New evidence of Miocene Protoceratidae including a new species from Chiapas, Mexico. Bulletin of the American Museum of Natural History 279:348-367