Ameghino Member, Formation

Geology

Formation: Ameghino

Members: unnamed (1), Ameghino (4), Longing (23)

Lithologies: mudstone (27), "shale" (1)

Paleoenvironments: marine indet. (4), offshore (3), basinal (siliciclastic) (21)

Age range: base of the Early/Lower Kimmeridgian to the top of the Early/Lower Berriasian or 154.80000 to 141.00000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Late/Upper Jurassic161.5 - 143.1Antarctica (232336)
Early/Lower Kimmeridgian154.8 - 152.21Antarctica (Antarctic Peninsula) (51834 51835)
Kimmeridgian - Tithonian154.8 - 143.1Antarctica (158964)
Late/Upper Kimmeridgian152.21 - 149.2Antarctica (Antarctic Peninsula) (9956 51833 51836 51837)
Late/Upper Kimmeridgian152.21 - 149.2Antarctica (46960 46961 90425)
Early/Lower Tithonian149.2 - 145.06Antarctica (46962 46963 46964 46965 46966 46967 46971 46972 90426 90427 232340)
Early/Lower Tithonian149.2 - 145.06Antarctica (Antarctic Peninsula) (10697 51838)
Early/Lower Tithonian - Late/Upper Tithonian149.2 - 143.1Antarctica (232363)
Late/Upper Tithonian145.06 - 143.1Antarctica (46968 46969)
Early/Lower Berriasian143.1 - 141.0Antarctica (46970)