Angostura Formation

Geology

Group: Santiago

Members: unnamed (27)

Lithologies: "siliciclastic" (10), sandstone (10), conglomerate (2), lime mudstone (1), "limestone" (6)

Paleoenvironments: marine indet. (2), carbonate indet. (4), shallow subtidal indet. (11), coastal indet. (10)

Age range: base of the Campanian to the top of the Tortonian or 83.60000 to 7.24600 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Campanian83.6 - 72.2Mexico (Chiapas) (223411)
Late/Upper Campanian83.6 - 72.2Argentina (Río Negro) (276643)
Campanian - Maastrichtian83.6 - 66.0Mexico (Chiapas) (221332 221333 221334)
Late/Upper Campanian - Early/Lower Maastrichtian83.6 - 66.0Argentina (Rio Negro) (189516)
Late/Upper Campanian - Early/Lower Maastrichtian83.6 - 66.0Argentina (Río Negro) (13308 51593 51595 51596 58573 219713)
Late/Upper Campanian - Late/Upper Maastrichtian83.6 - 66.0Mexico (163117 165169)
Late/Upper Campanian - Maastrichtian83.6 - 66.0Mexico (64217)
Serravallian - Tortonian13.82 - 7.246Ecuador (204346 204347 204348 204349 204350 204351)
Serravallian - Tortonian13.82 - 7.246Ecuador (Esmeraldas) (57966)
Tortonian11.63 - 7.246Ecuador (219223)
Late/Upper Miocene11.63 - 5.333Ecuador (96441 131016 131017)
Late/Upper Miocene11.63 - 5.333Ecuador (Esmeraldas) (41764 41839 41843 41844 41845 41846 60640 60662 136317)