Harperville Formation

Geology

Members: unnamed (1)

Lithologies: coal (1)

Paleoenvironments: terrestrial indet. (1)

Age range: base of the Wolfcampian to the top of the Sakmarian or 298.90000 to 290.10000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Wolfcampian - Sakmarian298.9 - 290.1USA (Texas) (24293)