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Ainonai, Kitanoo Mine, Kitami Province, Hokkaidō Prefecture, Japan

Formation	Ainonai
Age:	23.0 - 5.3 Ma Miocene
Interval	Miocene
Lithology	sandstone
Number of Collections	1
Number of Occurrences	14

Recorded Sample Locations

Location	Region	Stratigraphic Name
Ainonai-Mura	Kitanoo Mine, Kitami Province, Hokkaidō Prefecture, Japan	Ainonai

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Balanus sp. genus	6	Animalia : Arthropoda : Maxillopoda : Sessilia : Balanidae : *Balanus*	23.03 - 5.333 Ma Miocene
Terebratula psitacea species	7	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Hemithirididae : Hemithiris : *Terebratula psitacea*	23.03 - 5.333 Ma Miocene
Coptothyris sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Terebrataliidae : *Coptothyris*	23.03 - 5.333 Ma Miocene
Papyridea harrimani species	7	Animalia : Mollusca : Bivalvia : Cardiida : Cardiidae : Papyridea : *Papyridea harrimani*	23.03 - 5.333 Ma Miocene
Serripes (Serripes) laperousii species	7	Animalia : Mollusca : Bivalvia : Cardiida : Cardiidae : Serripes : *Serripes (Serripes) laperousii*	23.03 - 5.333 Ma Miocene
Angulus (Peronidia) sp. subgenus	6.3	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Angulus : *Angulus (Peronidia)*	23.03 - 5.333 Ma Miocene
Portlandia kakimii species	7	Animalia : Mollusca : Bivalvia : Nuculanida : Yoldiidae : Portlandia : *Portlandia kakimii*	23.03 - 5.333 Ma Miocene
Anomia sp. genus	6	Animalia : Mollusca : Bivalvia : Pectinida : Anomiidae : *Anomia*	23.03 - 5.333 Ma Miocene
Chlamys (Chlamys) cosibensis species	7	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Chlamys : *Chlamys (Chlamys) cosibensis*	23.03 - 5.333 Ma Miocene
Chlamys (Swiftopecten) swifti species	7	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Chlamys : *Chlamys (Swiftopecten) swifti*	23.03 - 5.333 Ma Miocene
Mimachlamys kaneharai species	7	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Chlamys : *Mimachlamys kaneharai*	23.03 - 5.333 Ma Miocene
Mizuhopecten kitamiensis species	7	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Mizuhopecten : *Mizuhopecten kitamiensis*	23.03 - 5.333 Ma Miocene
Amathina sp. genus	6	Animalia : Mollusca : Gastropoda : Littorinimorpha : Capulidae : *Amathina*	23.03 - 5.333 Ma Miocene
Crepidula sp. genus	6	Animalia : Mollusca : Gastropoda : Littorinimorpha : Calyptraeidae : *Crepidula*	23.03 - 5.333 Ma Miocene

References

Satoru U., Tsutomu F., et al (1966) Neogene Molluscan Fauna in Hokkaido : Part III. Description of the Ainonai Fauna Associated with Desmostylus cf. minor Nagao, from Kitami District, East Hokkaido, Contribution from the Department of the Geology and Mineralogy 971

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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