Member, Group

Geology

Group: Mendoza

Formation: Chachao

Formations: Chachao (3)

Lithologies: wackestone (3), packstone (5), "carbonate" (1)

Paleoenvironments: marine indet. (2), carbonate indet. (3), shallow subtidal indet. (1), offshore ramp (1), offshore indet. (1)

Age range: base of the Early/Lower Berriasian to the top of the Valanginian or 143.10000 to 132.60000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Early/Lower Berriasian143.1 - 141.0Argentina (Neuquen) (161863 161864)
Late/Upper Berriasian - Early/Lower Valanginian139.1 - 132.6Argentina (66655)
Early/Lower Valanginian137.05 - 132.6Argentina (Mendoza) (44669 44677 44710 44711)
Valanginian137.05 - 132.6Argentina (Mendoza) (27535)