Potrerillos Formation

Geology

Group: Difunta

Members: Lower siltstone (2), Upper Mudstone (2)

Lithologies: mudstone (1), siltstone (1), sandstone (1), grainstone (1)

Paleoenvironments: marginal marine indet. (2), shoreface (1), basinal (siliciclastic) (1)

Age range: base of the Early/Lower Maastrichtian to the top of the Early/Lower Paleocene or 72.20000 to 61.66000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Early/Lower Maastrichtian72.2 - 66.0Mexico (Coahuila) (233862 279917)
Early/Lower Paleocene66.0 - 61.66Mexico (Coahuila) (42469 42470)