The Cuscatlán Formation is a
geologic formation
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics ( lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exp ...
in
El Salvador
El Salvador (; , meaning " The Saviour"), officially the Republic of El Salvador ( es, República de El Salvador), is a country in Central America. It is bordered on the northeast by Honduras, on the northwest by Guatemala, and on the south by ...
. It preserves
fossils
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...
dating back to the
Pliocene
The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58[Middle Pleistocene
The Chibanian, widely known by its previous designation of Middle Pleistocene, is an Age (geology), age in the international geologic timescale or a Stage (stratigraphy), stage in chronostratigraphy, being a division of the Pleistocene Epoch withi ...](_blank)
(
Blancan
The Blancan North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), typically set from 4,750,000 to 1,806,000 years BP, a period of .[Irvingtonian
The Irvingtonian North American Land Mammal Age on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), spanning from 1.9 million – 250,000 years BP.] )
period.
Fossil content
* ''
Borophagus hilli
''Borophagus hilli'' is an extinct species of the genus ''Borophagus'' of the subfamily Borophaginae, a group of canids endemic to North America from the Late Miocene until the Pliocene.
Overview
''Borophagus hilli'' was named by C. S. Johnst ...
''
* ''
Meizonyx salvadorensis''
* ''
Megalonyx obtusidens''
* ''
cf. Arctotherium sp.''
[''Arctotherium'']
at Fossilworks
Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world.
History
Fossilworks was cre ...
.org
* ''
Cuvieronius sp.''
* ''
Eremotherium sp.''
* ''
Geochelone sp.''
* ''
Mixotoxodon sp.''
[Rincón, 2011, p.896]
*
Cervidae indet.
See also
*
List of fossiliferous stratigraphic units in El Salvador
References
Bibliography
*
Further reading
*
* S. D. Webb and S. C. Perrigo. 1984. Late Cenozoic Vertebrates from Honduras and El Salvador. Journal of Vertebrate Paleontology 4(2):237-254
{{DEFAULTSORT:Cuscatlan Formation
Geology of El Salvador
Neogene North America
Blancan
Irvingtonian
Fossiliferous stratigraphic units of North America
Paleontology in El Salvador
Formations