Ryoseki Formation, Group
Geology
Formations: unnamed (1)
Members: unnamed (3)
Lithologies: sandstone (2), conglomerate (1)
Paleoenvironments: marine indet. (3), estuary/bay (1)
Age range: Hauterivian or 132.90000 to 129.40000 Ma
Ryoseki Formation, Group
Formations: unnamed (1)
Members: unnamed (3)
Lithologies: sandstone (2), conglomerate (1)
Paleoenvironments: marine indet. (3), estuary/bay (1)