Stratigraphy
provided by World Register of Marine Species
Koyamada Formation, Soma Group
- license
- cc-by-4.0
- copyright
- WoRMS Editorial Board
- bibliographic citation
- Tanaka, K. 1984. Some Cretaceous Echinoids from Japan. Bulletin of the Geological Survey of Japan 35, 189-202. Tanaka, K. 1984. Some Cretaceous Echinoids from Japan. Bulletin of the Geological Survey of Japan 35, 189-202. Tanaka, K. 1984. Some Cretaceous Echinoids from Japan. Bulletin of the Geological Survey of Japan 35, 189-202. Tanaka, K. 1984. Some Cretaceous Echinoids from Japan. Bulletin of the Geological Survey of Japan 35, 189-202.
- contributor
- Andreas Kroh [email]
