San Gregorio Formation

Geology

Group: Itararé

Members: unnamed (7), Cocuiza (2), Vergel (2)

Lithologies: not reported (3), "siliciclastic" (1), mudstone (1), "shale" (2), sandstone (3), conglomerate (2), framestone (1)

Paleoenvironments: marine indet. (6), terrestrial indet. (1), reef, buildup or bioherm (1), coastal indet. (2), fluvial indet. (1)

Age range: base of the Asselian to the top of the Calabrian or 298.90000 to 0.77400 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Asselian298.9 - 293.52Uruguay (139504)
Asselian - Sakmarian298.9 - 290.1Uruguay (Northern Uruguay) (232871)
Arikareean29.5 - 18.5Mexico (Baja California Sur) (90463)
Chattian27.3 - 23.04Mexico (Baja California Sur) (43805 228158)
Late/Upper Oligocene27.3 - 23.04Mexico (34858)
Pliocene5.333 - 2.58Venezuela (Falcon) (228727)
Late/Upper Pliocene3.6 - 2.58Venezuela (Falcon) (122033 147461)
Calabrian1.8 - 0.774Venezuela (Falcon) (212870 219885)