Laa Formation

Geology

Members: unnamed (4)

Lithologies: siltstone (3), sandstone (4)

Paleoenvironments: marine indet. (2), "floodplain" (2)

Age range: base of the Atdabanian to the top of the MN 5 or 521.00000 to 13.82000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Atdabanian521.0 - 516.0Mongolia (63210)
Atdabanian - Botomian521.0 - 512.1Mongolia (22939 22940 22941 22942)
Aeronian440.5 - 438.6Mongolia (182339 182368 182370 182371 182372 182373 182374 182375 182376)
Pragian413.02 - 410.62Mongolia (238567)
Eifelian393.47 - 387.95South Africa (35603)
Smithian - Spathian249.9 - 246.7Canada (Nunavut) (44046)
Aegean246.7 - 244.99Canada (Nunavut) (44048 137933)
Ladinian241.464 - 237.0Canada (Nunavut) (43800 142424 142425 142426)
Longobardian - Julian239.48 - 233.6Canada (Nunavut) (137148)
Julian237.0 - 233.6Canada (Nunavut) (49799 98565 98566 137158 137164 137165 137166 137702 137785 137786 137997 137998)
Tuvalian - Julian233.6 - 233.6Canada (Nunavut) (57084)
Tuvalian233.6 - 227.3Canada (Nunavut) (43801 49739 49740 137155 137156 137159 137160 137161 137162 137163 137937 137956 137960)
Tithonian149.2 - 143.1Mongolia (Dund-Gov’ Aymag) (117695 117696 117697 117698 122314 122315 122316 122317 122318 122319 122320 122321)
Late/Upper Albian - Cenomanian106.3 - 93.9Mongolia (Omnogov) (214294)
Late/Upper Albian - Cenomanian106.3 - 93.9Mongolia (Omngov) (127661)
Late/Upper Albian - Cenomanian106.3 - 93.9Mongolia (Dalanzagad) (60457)
MN 515.98 - 13.82Austria (Niederösterreich) (45836)
MN 515.98 - 13.82Austria (174065 174066 174067)