Koguchi Formation

Geology

Group: Konose

Members: unnamed (2)

Lithologies: "reef rocks" (2)

Paleoenvironments: reef, buildup or bioherm (2)

Age range: base of the Carnian to the top of the Norian or 237.00000 to 205.70000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Carnian237.0 - 227.3Japan (34883)
Norian227.3 - 205.7Japan (133731)