Ninemile Formation

Geology

Group: Pogonip

Members: unnamed (63)

Lithologies: not reported (2), mudstone (3), "shale" (29), siltstone (4), lime mudstone (3), packstone (2), "limestone" (36)

Paleoenvironments: marine indet. (5), shallow subtidal indet. (17), deep subtidal shelf (33), slope (6), offshore (3)

Age range: Arenig or 478.60000 to 466.00000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Ibexian487.5 - 470.0USA (Nevada) (104536 104537 226716)
Early/Lower Ordovician485.4 - 470.0USA (Nevada) (231317)
Tulean480.8 - 474.9USA (Nevada) (291 104538 104539 104540 104541 104542 104543 104544 104545 104546 104547)
Tulean - Blackhillsian480.8 - 470.0USA (Nevada) (77186 186587 210810)
Arenig478.6 - 466.0USA (Nevada) (60037 60038 64601)
Blackhillsian - Rangerian474.9 - 470.3USA (Nevada) (104270 104356)
Blackhillsian474.9 - 470.0USA (Nevada) (77180 77181 77184 77185 104348 104350 104351 104352 104353 104354 104355 104385 104401 104402 104403 104404 104405 104431 104433 104548 104549 104550 104551 104552 104553 104554 104555 104556 104630 104631 104632 104633 104651 174459 180654 180655)
Blackhillsian474.9 - 470.0USA (California) (104306 104349 104636 104637)
Rangerian470.0 - 470.3USA (Nevada) (77183)