Hoso-o Formation

Geology

Group: Kanokura

Members: unnamed (11), Unit 1 (2)

Lithologies: "siliciclastic" (4), mudstone (6), "shale" (3)

Paleoenvironments: marine indet. (10), offshore shelf (2), offshore (1)

Age range: base of the Kungurian to the top of the Wordian or 283.30000 to 264.28000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Kungurian283.3 - 274.4Japan (114091 167888)
Roadian274.4 - 266.9Japan (107608 107609 107610 118920)
Wordian266.9 - 264.28Japan (107611 107612 221140 221141 221142 224525 224526)