Fray Bentos Formation

The Fray Bentos Formation is a Deseadan^[1] geologic formation of the Paysandú Group in Uruguay and portions of Argentina,^[2] corresponding to the Paraná Basin.^[3][4] It is composed of calcareous sandstones and siltstones with a pinkish-orange coloration. It outcrops in southwestern Uruguay (Canelones and Soriano Departments), the central and southeastern part of the province of Corrientes and northeast Entre Ríos.

Fray Bentos Formation
Stratigraphic range: Deseadan ~29.0–21.0 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Unit of	Paysandú Group
Underlies	Raigón Formation
Overlies	Asencio Formation
Lithology
Primary	sandstone
Other	siltstone
Location
Country	Uruguay, Argentina
Extent	Paraná Basin
Type section
Named for	Fray Bentos
Named by	Bossi
Year defined	1966
Fray Bentos Formation, Uruguay

Fossil content

The following fossils have been reported from the formation:

Mammals

• Argyrohyrax^[5]
• Cephalomyidae^[6]
• Eopachyrucos^[7][8]
• Fiandraia^[9]
• Proborhyaena^[9]
• Prohegetotherium schiaffinoi^[10]
• Protypotherium^[9]
• Scarrittia^[11]
• Uruguaytherium beaulieui^[12]

Birds

• Devincenzia gallinali^[13]
• Devincenzia pozzi^[14]

See also

• List of fossiliferous stratigraphic units in Uruguay