Middle Poleta Member

Geology

Formation: Poleta

Lithologies: not reported (1), "shale" (1), siltstone (4), sandstone (2), "limestone" (2)

Paleoenvironments: marine indet. (1), shallow subtidal indet. (1), open shallow subtidal (1), offshore indet. (1)

Age range: base of the Nemakit-Daldynian to the top of the Holocene or 538.80000 to 0.00000 Ma
Collections

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Nemakit-Daldynian538.8 - 525.5Iran (10526 10527)
Nemakit-Daldynian538.8 - 525.5Mongolia (Khasagt-Khairkhan) (10116)
Placentian538.8 - 517.1USA (Massachusetts) (56837)
Tommotian525.5 - 521.0Spain (Castile-La Mancha) (78610 78611)
Tommotian525.5 - 521.0Russian Federation (Yakutiya) (179711 179712)
Atdabanian521.0 - 516.0USA (Massachusetts) (56835)
Montezuman - Atdabanian520.0 - 516.0USA (Nevada) (10496)
Montezuman520.0 - 515.3USA (California) (196145)
Botomian516.0 - 512.9USA (California) (153090)
Lenian516.0 - 510.2Canada (Alberta) (10865 10866 10868 10869 10870 10871 10872 10873 10874 10875)

Youngest occurrences
Time interval Ma Country or state PBDB collection number
Late/Upper Pliocene3.6 - 2.588Costa Rica (Limon) (79843 79992 79993)
Late/Upper Pliocene3.6 - 2.588Argentina (Jujuy) (207056)
Piacenzian3.6 - 2.588Japan (Yamagata) (229986 229987)
Calabrian1.8 - 0.774Japan (162759 162760 162765 162768 162769 162773)
Calabrian1.8 - 0.774Tanzania (Lake Natron Basin) (22552 22577)
Calabrian1.8 - 0.774Costa Rica (Limon) (79835 79842 79845)
Middle Pleistocene0.774 - 0.129Barbados (82815 82816)
Middle Pleistocene - Late/Upper Pleistocene0.774 - 0.0117Kenya (22276 22301 22302)
Holocene0.0117 - 0.0Bolivia (Chuquisaca) (70705)
Holocene0.0117 - 0.0USA (Louisiana) (41942)