Holitna Group

Geology

Formations: unnamed (4)

Lithologies: mudstone (2), packstone (1), "limestone" (1)

Paleoenvironments: marine indet. (4)

Age range: base of the Llandovery to the top of the Norian or 443.10000 to 205.70000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Llandovery443.1 - 432.9USA (Alaska) (99507)
Norian227.3 - 205.7USA (Alaska) (39896 39897 39898)