San Lorenzo Formation

Geology

Members: unnamed (24), Rices Mudstone (2), Twobar Shale (1), Vaqueros Sandstone (2)

Lithologies: not reported (1), "shale" (4), siltstone (22), sandstone (6)

Paleoenvironments: marine indet. (22), coastal indet. (4), submarine fan (3)

Age range: base of the Arenig to the top of the Oligocene or 478.60000 to 23.03000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Arenig478.6 - 466.0Bolivia (8843 197270 197274)
Bartonian - Priabonian41.3 - 33.9USA (California) (185232 185233)
Priabonian38.0 - 33.9USA (California) (37514 37515 185229 185230 185231 237091)
Oligocene33.9 - 23.03USA (California) (185215 185216 185217 185218 185219 185220 185221 185222 185223 185224 185225 185226 185227 185228 186038 206591)
Chattian - Aquitanian28.1 - 20.44USA (California) (37516 37517)