Arroyo Chasicó Formation
Geology
Members: unnamed (4), Las Barrancas (1), Vivero (2)
Lithologies: not reported (9), sandstone (1), lime mudstone (1)
Paleoenvironments: terrestrial indet. (8), fluvial indet. (1), "floodplain" (2)
Age range: Chasicoan or 10.00000 to 9.00000 Ma