Saginaw Formation, Group

Geology

Formations: unnamed (3)

Members: unnamed (1)

Lithologies: not reported (2), "shale" (2), sandstone (3), "limestone" (3), chert (1), coal (1)

Paleoenvironments: marine indet. (4), carbonate indet. (3), offshore (1), mire/swamp (1)

Age range: base of the Late/Upper Devonian to the top of the Early/Lower Pennsylvanian or 382.31000 to 315.20000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Late/Upper Devonian382.31 - 358.86USA (Michigan) (21217)
Mississippian358.86 - 323.4USA (Alaska) (112176 112177 112178)
Early/Lower Pennsylvanian323.4 - 315.2USA (Alaska) (112188)
Pennsylvanian323.4 - 298.9USA (Michigan) (10778 10885 10889)
Pennsylvanian323.4 - 298.9USA (Alaska) (111914 111915 111916 111917)