Retort Member

Geology

Formation: Phosphoria

Lithologies: claystone (3), mudstone (10), "shale" (4), sandstone (1), "limestone" (5)

Paleoenvironments: marine indet. (8), offshore (12)

Age range: Lopingian or 259.90000 to 252.17000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Lopingian259.9 - 252.17USA (Idaho) (11282 184611)
Lopingian259.9 - 252.17USA (Montana) (11275 88662 105349 105370 107756 107757 107758 107759 107760 107761 107762 107763 107764 107765)
Lopingian259.9 - 252.17USA (Wyoming) (11224 83004 95799 105360)