Omo Group

Geology

Formations: Kalam (1), Koobi Fora (26), Mursi (1), Nachukui (54), Shungura (228), USNO (3)

Lithologies: not reported (6), claystone (5), mudstone (11), siltstone (56), sandstone (149), conglomerate (1), tuff (1)

Paleoenvironments: terrestrial indet. (15), delta plain (1), deltaic indet. (7), fluvial indet. (37), wet floodplain (10), dry floodplain (3), levee (4), fluvial-lacustrine indet. (27), fluvial-deltaic indet. (17), lacustrine - small (13), lacustrine indet. (22)

Age range: base of the Ediacaran to the top of the Late/Upper Pleistocene or 635.00000 to 0.01170 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Ediacaran635.0 - 538.8Spain (237440)
Aptian121.4 - 113.2Australia (Queensland) (83910)
Huayquerian8.0 - 5.0Argentina (Tucumán) (211304)
Zanclean5.333 - 3.6Ethiopia (21737)
Pliocene5.333 - 2.58Ethiopia (21616 21753 21754 21755)
Pliocene - Calabrian5.333 - 0.774Ethiopia (21739 21749 21989 21990 21991 21992 21993 22027 22028)
Pliocene - Pleistocene5.333 - 0.0117Ethiopia (21748)
Late/Upper Pliocene - Piacenzian3.6 - 2.58Ethiopia (21546)
Piacenzian3.6 - 2.58Kenya (Rift Valley) (21307 21308 21309 21310)
Piacenzian3.6 - 2.58Ethiopia (21549 21599 21600 21601 21608 21623 21624 21634 21636 21637 21638 21639 21640 21677 21984 22029 22030 22031 22032 22033 22034 22035 22036 22037 22038)
Piacenzian - Gelasian3.6 - 1.8Kenya (Rift Valley) (21344)
Late/Upper Pliocene - Calabrian3.6 - 0.774Ethiopia (21629)
Late/Upper Pliocene - Early/Lower Pleistocene3.6 - 0.774Kenya (Rift Valley) (21287 21288 21289 21291 21292 21293 21352 21359)
Late/Upper Pliocene - Early/Lower Pleistocene3.6 - 0.774Ethiopia (195542)
Late/Upper Pliocene - Early/Lower Pleistocene3.6 - 0.774Kenya (21290)
Gelasian2.58 - 1.8Kenya (Rift Valley) (21279 21280 21281 21282 21283 21284 21285 21286 21300 21301 21302 21303 21304 21305 21342 21345 21346 21353 21354 21355 21356)
Gelasian2.58 - 1.8Kenya (22348 32116 32120)
Gelasian2.58 - 1.8Ethiopia (21541 21542 21543 21544 21545 21547 21548 21550 21551 21552 21553 21554 21555 21556 21557 21558 21559 21560 21561 21562 21563 21564 21565 21566 21567 21568 21569 21570 21571 21572 21573 21574 21575 21576 21577 21578 21579 21580 21581 21582 21583 21584 21585 21586 21587 21588 21589 21590 21591 21592 21593 21594 21595 21596 21597 21598 21602 21603 21604 21605 21606 21607 21609 21610 21611 21612 21613 21614 21615 21617 21618 21619 21620 21621 21622 21625 21626 21627 21628 21630 21631 21632 21633 21635 21641 21642 21643 21644 21645 21646 21647 21648 21649 21650 21651 21652 21653 21654 21655 21656 21657 21658 21659 21660 21661 21662 21663 21664 21665 21666 21667 21668 21669 21670 21671 21672 21673 21674 21675 21676 21678 21679 21680 21681 21682 21683 21684 21685 21738 21740 21741 21742 21743 21744 21745 21746 21747 21750 21751 21752 21964 21965 21966 21983 21985 21986 21987 21988 21994 21995 21996 21997 21998 21999 22000 22001 22002 22003 22004 22005 22006 22007 22008 22009 22010 22011 22012 22013 22014 22015 22016 22017 22018 22019 22020 22021 22022 22023 22024 22025 22026 22039 22040)
Early/Lower Pleistocene2.58 - 0.774Ethiopia (13679 28615 28616 28618 28622 28993)
Gelasian - Calabrian2.58 - 0.774Kenya (Rift Valley) (21350)
Gelasian - Calabrian2.58 - 0.774Kenya (22342 32051 32053 32055 32079 32080 32094 32117 32118 32122)
Calabrian1.8 - 0.774Kenya (Rift Valley) (21294 21295 21296 21297 21298 21299 21306 21341 21343 21347 21348 21349 21351 21360 21361)
Calabrian1.8 - 0.774Kenya (32057 32058 32060 32063 32077 32081 32085 32087 32088 32089 32108 32111 32114 32121 32123)
Late/Upper Pleistocene0.129 - 0.0117Kenya (197003)
Late/Upper Pleistocene0.129 - 0.0117Ethiopia (28621)