Lower Kimmeridge Clay Member

Geology

Group: Ancholme

Formation: Kimmeridge Clay

Lithologies: not reported (5), claystone (12), mudstone (3), "shale" (1), siltstone (1)

Paleoenvironments: marine indet. (18), marginal marine indet. (3), deep-water indet. (2)

Age range: base of the Ediacaran to the top of the Holocene or 635.00000 to 0.00000 Ma
Collections

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Ediacaran635.0 - 541.0Kazakhstan (10693)
Ediacaran635.0 - 541.0Canada (Northwest Territories) (10433 231367)
Ediacaran635.0 - 541.0India (Himachal Pradesh) (224773 224774)
Ediacaran635.0 - 541.0USA (North Carolina) (10257 10258 10259)
Ediacaran635.0 - 541.0Norway (Finnmark) (10250)
Ediacaran635.0 - 541.0India (Madhya Pradesh) (226634)
Ediacaran635.0 - 541.0India (Andhra Pradesh) (225060)
Ediacaran635.0 - 541.0Spain (205645)
Ediacaran635.0 - 541.0Australia (Northern Territory) (10511)
Ediacaran635.0 - 541.0USA (California) (7181 7178 10549 231329)

Youngest occurrences

Time interval Ma Country or state PBDB collection number
Calabrian1.806 - 0.781Japan (Kanagawa) (46043)
Irvingtonian1.8 - 0.3USA (California) (20155)
Irvingtonian1.8 - 0.3USA (Texas) (20411 20412)
Irvingtonian1.8 - 0.3USA (Kansas) (20137 20165 20422 20423 20424)
Middle Pleistocene0.781 - 0.126Japan (Chiba) (96893)
Middle Pleistocene0.781 - 0.126Bolivia (Chuquisaca) (70704)
Middle Pleistocene - Quaternary0.781 - 0.0India (Hoshangabad, Madhya Pradesh) (13447)
Late/Upper Pleistocene0.126 - 0.0117Canada (New Brunswick) (73665)
Late/Upper Pleistocene0.126 - 0.0117Argentina (Corrientes) (187628)
Holocene0.0117 - 0.0USA (Louisiana) (41934)