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Shimoyama, Sakawa, Takaoka District, Kochi Prefecture, Japan

Lat/Long (Decimal)33.5,133.3
Co-ordinates Derivationbased on nearby landmark
Mindat.org Region (for given coordinates)Sakawa, Takaoka District, Kochi Prefecture, Japan

Collections

CollectionReferenceStratigraphic NameCommentsLithologyAge
Katsura, Kochi PrefectureNakazawa K., Newell N.D. (1968)KatsuraUpper part of formation. Katsura Formation is correlated with similar Toyoma and Gujo Formations, although the age assignment is uncertain because it lacks biostratigraphically useful fossils.sandstone254.17 - 252.17 Ma
Permian
Shimoyama, Sakawa City, Kochi PrefectureKobayashi T., Hamada T. (1980)Shimoyama"limestone"265.1 - 259.9 Ma
Permian

Recorded Fossils

Accepted NameHierarchyAge
Paraphillipsia levigata
species
Animalia : Arthropoda : Trilobita : Proetida : Phillipsiidae : Paraphillipsia : Paraphillipsia levigata265.1 - 259.9 Ma
Permian
Nuculites ichikawai
species
Animalia : Mollusca : Bivalvia : Nuculanida : Malletiidae : Nuculites : Nuculites ichikawai254.17 - 252.17 Ma
Permian
Nuculanella sp.
genus
Animalia : Mollusca : Bivalvia : Nuculida : Nuculidae : Nuculanella254.17 - 252.17 Ma
Permian
Nuculopsis (Nuculopsis) orientalis
species
Animalia : Mollusca : Bivalvia : Nuculida : Nuculidae : Nuculopsis : Nuculopsis (Nuculopsis) orientalis254.17 - 252.17 Ma
Permian
Costatoria katsurensis
species
Animalia : Mollusca : Bivalvia : Trigoniida : Myophoriidae : Costatoria : Costatoria katsurensis254.17 - 252.17 Ma
Permian
Neoschizodus kobayashii
species
Animalia : Mollusca : Bivalvia : Trigoniida : Myophoriidae : Neoschizodus : Neoschizodus kobayashii254.17 - 252.17 Ma
Permian
Actinodontophora katsurensis
species
Animalia : Mollusca : Bivalvia : Actinodontophoridae : Actinodontophora : Actinodontophora katsurensis254.17 - 252.17 Ma
Permian

References

Nakazawa K., Newell N.D. (1968) Permian bivalves of Japan, Memoirs of the Faculty of Science, Kyoto University, Series of Geology and Mineralogy 35 1, 1-108
Newell N. D., Boyd D.W. (1975) Parallel evolution in early trigonacean bivalves, Bulletin of the American Museum of Natural History 154 2, 55-162
Hayami I., Kase T. (1977) A systematic survey of the Paleozoic and Mesozoic Gastropoda and Paleozoic Bivalvia from Japan, University of Tokyo Bulletin 13
Kobayashi T., Hamada T. (1980) Three new species of Permian trilobites from west Japan, Proceedings of the Japan Academy, Series B 56, 120-124
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!
 
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