Hackberry Group

Geology

Formations: Lime Creek (4)

Lithologies: "shale" (2), dolomite (1), "carbonate" (1)

Paleoenvironments: carbonate indet. (4)

Age range: Frasnian or 382.31000 to 372.15000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Frasnian382.31 - 372.15USA (Iowa) (56253 56254 56255 56362)