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Suidonosawa, Sorachi Subprefecture, Hokkaidō Prefecture, Japan
Lat/Long (Decimal) | 43.14,141.985 |
---|---|
Co-ordinates Derivation | based on nearby landmark |
Mindat.org Region (for given coordinates) | Sorachi Subprefecture, Hokkaidō Prefecture, Japan |
Collections
Collection | Reference | Stratigraphic Name | Comments | Lithology | Age |
---|---|---|---|---|---|
Suidonosawa, between Manji and Manji coal mine | Kobayashi T. (1957) | Poronai | Late Mid to Late Eocene on the basis of calcareous nannofossils (Okada and Kaiho 1992). Planktonic foraminifera indicate that the uppermost part of the Poronai Formation may extend into the earliest Oligocene (Kaiho 1984a, 1984b; Kaiho et al. 1986). | mudstone | 38 - 33.9 Ma Paleogene |
Recorded Fossils
Accepted Name | Hierarchy | Age |
---|---|---|
Aturia yokoyamai species | Animalia : Mollusca : Cephalopoda : Nautilida : Aturiidae : Aturia : Aturia yokoyamai | 38 - 33.9 Ma Paleogene |
References
Kobayashi T. (1957) On an Aturia from the Poronai shale in Hokkaido, Transactions and Proceedings of the Paleontological Society of Japan, N.S. 27, 75-80 |
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!