Hala Formation

Geology

Members: unnamed (4)

Lithologies: claystone (1), marl (2), "limestone" (1)

Paleoenvironments: open shallow subtidal (3), prodelta (1)

Age range: base of the Merioneth to the top of the Holocene or 497.00000 to 0.00000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Merioneth - Early/Lower Ordovician497.0 - 471.3China (Qinghai) (68634)
Hirnantian445.2 - 443.1Kazakhstan (153085 153086 153087 153089)
Early/Lower Famennian - Middle Famennian372.15 - 365.2Morocco (238503 238504 238505 238506)
Kungurian283.3 - 274.4Russian Federation (102216 106073)
Oxfordian161.5 - 154.8Hungary (160403)
Kimmeridgian154.8 - 149.2Hungary (154745 154746 154747 154748 154749)
Tithonian149.2 - 143.1Hungary (154750 154751 154752 154753 154754 154755 154756 154757 154758 154759 154760 154761 154762 154763 154764 154765 154766 160404 160405 160406 160407 160408 160409 160410 160411 160412 160413 160414 160415 160416 160417 160418 160419 160420 160421 160422 160423 160424)
Albian113.2 - 100.5Egypt (176857 176860 176861)
Middle Albian110.1 - 106.3Egypt (191703 191704 191712 191713 220861)
Middle Albian110.1 - 106.3Egypt (Sinai) (50268 193561)
Late/Upper Albian106.3 - 100.5Egypt (Sinai) (50269 50273)
Late/Upper Albian106.3 - 100.5Egypt (140606 140607 140608 140609 140610 140611 140642 140643 176849 191705 191706 191707 191714 191715 191716 193571)
Late/Upper Albian - Cenomanian106.3 - 93.9Egypt (150677 150737 150874 150876)
Early/Lower Cenomanian100.5 - 93.9Egypt (Sinai) (193562)
Early/Lower Cenomanian100.5 - 93.9Egypt (140612 140613 140615 140618 140619 140620 184768 184769 191717 220862 220863 220864 220865 220866 220867)
Late/Upper Cenomanian100.5 - 93.9Egypt (151604 151605 184766 184770 184771)
Middle Cenomanian100.5 - 93.9Egypt (184767 184772)
MN 515.98 - 13.82Russian Federation (Irkutsk) (205812)
Serravallian13.82 - 11.63China (Xinjiang) (42246)
Serravallian13.82 - 11.63Russian Federation (Irkutsk) (48439)
Holocene0.0117 - 0.0USA (Hawaii) (109863)