Upper section Member

Geology

Formation: Osgood Shale

Lithologies: "shale" (1), "limestone" (1)

Paleoenvironments: deep subtidal shelf (1)

Age range: Silurian or 443.40000 to 419.20000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Silurian443.4 - 419.2USA (Indiana) (75266)