Cuscatlán Formation
Stratigraphic range: Pliocene-Mid Pleistocene (Blancan-Irvingtonian)
Type	Formation
Location
Coordinates	13°48′N 89°12′W / 13.8°N 89.2°W / 13.8; -89.2
Approximate paleocoordinates	13°54′N 88°54′W / 13.9°N 88.9°W / 13.9; -88.9
Region	Cuscatlán
Country	El Salvador
Type section
Named for	Cuscatlán Department
Cuscatlán Formation (El Salvador)

The Cuscatlán Formation is a geologic formation in El Salvador. It preserves fossils dating back to the Pliocene to Middle Pleistocene (Blancan to Irvingtonian) period.^[1]

• Borophagus hilli^[2]
• Meizonyx salvadorensis^[3]
• Megalonyx obtusidens
• cf. Arctotherium sp.^[4]
• Cuvieronius sp.
• Eremotherium sp.
• Geochelone sp.
• Mixotoxodon sp.^[5]
• Cervidae indet.

• List of fossiliferous stratigraphic units in El Salvador

• Rincón, Ascanio D (2011), "New remains of Mixotoxodon larensis Van Frank 1957 (Mammalia: Notoungulata) from Mene de Inciarte tar pit, north-western Venezuela" (PDF), Interciencia, 36: 894–899, retrieved 2019-02-05

• Soibelzon, L.H.; Romero, M.R.; Huziel Aguilar, D.; Tartarini, V.B. (2008), "A Blancan (Pliocene) short-faced bear from El Salvador and its implications for Tremarctines in South America", Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen, 250: 1–8, doi:10.1127/0077-7749/2008/0250-0001, retrieved 2019-02-21
• S. D. Webb and S. C. Perrigo. 1984. Late Cenozoic Vertebrates from Honduras and El Salvador. Journal of Vertebrate Paleontology 4(2):237-254