Uppermost Kirkwood Member

Geology

Group: Uitenhage

Formation: Kirkwood

Lithologies: mudstone (1)

Paleoenvironments: terrestrial indet. (1)

Age range: base of the Arenig to the top of the Blancan or 478.60000 to 1.80000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Arenig478.6 - 466.0Norway (Svalbard) (141917 141919)
Givetian387.7 - 382.7Australia (Queensland) (39870)
Capitanian264.28 - 259.51China (Sichuan) (138568)
Berriasian - Valanginian145.0 - 132.9South Africa (Eastern Cape) (51903)
Middle Campanian83.5 - 70.6USA (Mississippi) (6663 6665)
Maastrichtian72.1 - 66.0USA (Texas) (4541)
Early/Lower Maastrichtian70.6 - 66.0USA (Mississippi) (4102)
Late/Upper Maastrichtian70.6 - 66.0USA (Alabama) (4196 4197)
Late/Upper Maastrichtian70.6 - 66.0USA (Texas) (4444 4445 4446 4447 4465)
Late/Upper Maastrichtian70.6 - 66.0USA (Mississippi) (4166 4167)
Late/Upper Maastrichtian70.6 - 66.0USA (Maryland) (4366 4367 4368 4369 4371 4372 4373)
Danian66.0 - 61.6USA (Alabama) (2808 2837)
Middle Eocene47.8 - 37.71USA (Oregon) (16842)
Hemingfordian20.43 - 15.97USA (Wyoming) (17957)
Barstovian16.3 - 12.5USA (Idaho) (19013)
Blancan4.9 - 1.8USA (Washington) (20064)
Early/Lower Pleistocene2.588 - 0.781Japan (153618)