Bahía Inglesa Formation Explained

Bahía Inglesa Formation
Type:Geological formation
Period:Neogene
Age:MiocenePleistocene
Prilithology:Conglomerate, coquina, sand, sandstone, siltstone, shale
Otherlithology:Clay, limestone
Namedfor:Bahía Inglesa
Region:Atacama Region
Underlies:Estratos de Caldera (Caldera Beds)
Overlies:Angostura Formation
Extent:Caldera Basin

The Bahía Inglesa Formation (alternatively misspelled "Bahia") is a littoral, sedimentary, and highly fossiliferous geological formation that outcrops across the nearby coastal zones of Caldera, Chile. The unit is part of the greater Caldera Basin and was deposited in deep-shallow water, littoral paleoenvironments. It holds an exquisite fossil record in several localities (such as Cerro Ballena), mostly composed of marine mammals, as well as invertebrate taxa.[1] [2] [3] [4]

See also

Notes and References

  1. Pyenson. N. D.. Gutsein. C. S.. Parham. J. F.. Le Roux. J. P.. Chavarria. C. C.. Little. H.. Metallo. A.. Rossi. V.. Valenzuela-Toro. A. M.. Velez-Juarbe. J.. Santelli. C. M.. Rogers. D. R.. Cozzuol. M. A. Suárez. M. E.. 2014. Repeated mass strandings of Miocene marine mammals from Atacama Region of Chile point to sudden death at sea. Proceedings of the Royal Society B: Biological Sciences. 281. 1781. 10.1098/rspb.2013.3316. free. 3953850. 24573855. Supplemental Material
  2. Le Roux. J. P.. Achurra. L.. Henríquez. Á.. Carreño. C.. Rivera. H.. Suárez. M. E.. Ishman. S. E.. Pyenson. N. D.. Gutstein. C. S.. 2016. Oroclinal bending of the Juan Fernández Ridge suggested by geohistory analysis of the Bahía Inglesa Formation, north-central Chile. Sedimentary Geology. 333. 32–49. 10.1016/j.sedgeo.2015.12.003. 2016SedG..333...32L .
  3. Oyanadel-Urbina. P.. De Gracia. C.. Carrillo-Briceño. J. D.. Nielsen. S. N.. Flores. H.. Casteletto. V.. Kriwet. J.. Rivadeneira. M. M.. Villafaña. J. A.. 2021. Neogene Bony Fishes from the Bahía Inglesa Formation, Northern Chile. Ameghiniana. 58. 4. 345−368. 10.5710/amgh.26.05.2021.3375. 236644447 .
  4. Püschel. H. P.. Alarcón-Muñoz. J.. Soto-Acuña. S.. Ugalde. R.. Shelley. S. L.. Brusatte. S. L.. 2023. Anatomy and phylogeny of a new small macraucheniid (Mammalia: Litopterna) from the Bahía Inglesa Formation (late Miocene), Atacama Region, Northern Chile. Journal of Mammalian Evolution. 30 . 2 . 415–460 . 10.1007/s10914-022-09646-0. free.