Poleta Formation

Geology

Members: unnamed (51), Lower (5), Lower Mb. (11), Middle (6), Upper (9)

Lithologies: not reported (11), "siliciclastic" (10), mudstone (2), "shale" (14), siltstone (29), sandstone (5), grainstone (1), "reef rocks" (4), bafflestone (10), "limestone" (22), quartzite (5)

Paleoenvironments: marine indet. (23), carbonate indet. (3), shallow subtidal indet. (18), open shallow subtidal (1), reef, buildup or bioherm (18), deep subtidal indet. (6), offshore indet. (5), transition zone/lower shoreface (1), offshore (5)

Age range: base of the Montezuman to the top of the Botomian or 520.00000 to 512.90000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Early/Lower Cambrian538.8 - 509.0USA (Nevada) (204018 204020 204022 204023 204025 204027 204029 204030 204031 204032)
Waucoban538.8 - 509.0USA (California) (9126)
Montezuman - Atdabanian520.0 - 516.0USA (Nevada) (10496)
Montezuman520.0 - 515.3USA (California) (196141 196145 196170 196183 204216 226367 226368 226369 226370 226371 226372 226373 226374)
Montezuman520.0 - 515.3USA (Nevada) (41017 140544 140545 140546 140547 140548 140549 140550 140551 140553 140555 140556 140557 140558 140571 140574 140572 140573 140575 140576 140580 140591 140614 140617 140650 196142 226375 226376)
Montezuman - Dyeran520.0 - 511.2USA (California) (204542 217094 217095)
Botomian516.0 - 512.9USA (California) (153090)
Botomian516.0 - 512.9USA (Nevada) (81038 218891 218892 218893)
Dyeran515.3 - 511.2USA (California) (177 9587 90625 204505 204508 204510 204515 204516 204517 226589 226617 226618 226621 229158 229159)
Dyeran515.3 - 511.2USA (Nevada) (10497 203344 203345 204015 204959 227038)