Chañares Formation

Geology

Group: Agua de la Peña

Members: unnamed (22), Lower (1)

Lithologies: not reported (18), claystone (1), mudstone (1), sandstone (3)

Paleoenvironments: terrestrial indet. (3), coarse channel fill (2), "floodplain" (1), fluvial-lacustrine indet. (16), lacustrine indet. (1)

Age range: base of the Longobardian to the top of the Julian or 239.48000 to 233.60000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Middle Triassic246.7 - 237.0Argentina (La Rioja) (223841)
Ladinian241.464 - 237.0Argentina (La Rioja) (13003 13271 60293 60294 60295 60296 60297 60298 60299 60300 60301 60302 105532 105533 105534 105535 195243)
Ladinian - Carnian241.464 - 227.3Argentina (Rioja) (218114)
Ladinian - Carnian241.464 - 227.3Argentina (La Rioja) (218115)
Longobardian - Julian239.48 - 233.6Argentina (La Rioja) (205839)
Longobardian - Judithian239.48 - 72.2Argentina (La Rioja) (26092)
Julian237.0 - 233.6Brazil (Rio Grande do Sul) (194176)