Irhazer Shales Formation

Geology

Group: Irhazer

Members: unnamed (9)

Lithologies: claystone (4), "shale" (5), sandstone (5), conglomerate (1)

Paleoenvironments: terrestrial indet. (9)

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
Berriasian - Valanginian143.1 - 132.6Niger (Agadez) (59630 59631 59632)
Early/Lower Berriasian - Late/Upper Valanginian143.1 - 132.6Niger (Agadez) (25193 25202 25223)
Early/Lower Berriasian - Late/Upper Valanginian143.1 - 132.6Niger (Agadès) (223707)
Early/Lower Berriasian - Late/Upper Valanginian143.1 - 132.6Niger (Agadèz) (25132 25133)