It is dated to the Chattian, about 26 to 24 Ma, (Deseadan in the SALMA classification).

The formation comprises moderately-sorted, fine to medium sandstones with angular quartz-feldspathic clasts.

Conspicuous rounded green grains are probably glauconite, but berthierine cannot be dismissed.

The formation was deposited in an estuarine to mid shelf environment.

Fossils of sharks, turtles and the tropical dolphin Urkudelphis were recovered from the formation.