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Rumoi Subprefecture, Hokkaidō Prefecture, Japani
Regional Level Types
Rumoi SubprefectureSubprefecture
Hokkaidō PrefecturePrefecture
JapanCountry

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PhotosMapsSearch
00720680015871261865026.jpg
Ruthenium

Kagawa, Tomamae, Tomamae District, Rumoi Subprefecture, Hokkaidō Prefecture, Japan
04140260015871260447513.jpg
Ferronickelplatinum

Ainusawa River, Haboro, Tomamae District, Rumoi Subprefecture, Hokkaidō Prefecture, Japan
07563970015871285482227.jpg
Rutheniridosmine

Ainusawa River, Haboro, Tomamae District, Rumoi Subprefecture, Hokkaidō Prefecture, Japan
05348540015871144921718.jpg
Ruthenium

Kagawa, Tomamae, Tomamae District, Rumoi Subprefecture, Hokkaidō Prefecture, Japan
05697440015871144915976.jpg
Ferronickelplatinum

Ainusawa River, Haboro, Tomamae District, Rumoi Subprefecture, Hokkaidō Prefecture, Japan
08964860015871122361202.jpg
Rutheniridosmine

Ainusawa River, Haboro, Tomamae District, Rumoi Subprefecture, Hokkaidō Prefecture, Japan
00720680015871261865026.jpg
Ruthenium

Kagawa, Tomamae, Tomamae District, Rumoi Subprefecture, Hokkaidō Prefecture, Japan
04140260015871260447513.jpg
Ferronickelplatinum

Ainusawa River, Haboro, Tomamae District, Rumoi Subprefecture, Hokkaidō Prefecture, Japan
Neighbouring regions:
Ishikari Subprefecture, Hokkaidō Prefecture, Japan
Sorachi Subprefecture, Hokkaidō Prefecture, Japan
Sōya Subprefecture, Hokkaidō Prefecture, Japan
Kamikawa Subprefecture, Hokkaidō Prefecture, Japan
Type:
Subprefecture
Largest Settlements:
PlacePopulation
Rumoi26,454 (2017)
Mindat Locality ID:
311097
Long-form identifier:
1:2:311097:6
GUID (UUID V4):
6c16a5e5-8c5b-494d-89e6-a98449b2b034
Other Languages:
View 14 more...
French:
sous-préfecture de Rumoi, Hokkaidō, Japon
German:
Unterpräfektur Rumoi, Präfektur Hokkaido, Japan
Italian:
Sottoprefettura di Rumoi, prefettura di Hokkaidō, Giappone
Japanese:
留萌振興局, 北海道, 日本
Russian:
Румои, Хоккайдо, Япония
Simplified Chinese:
留萌振興局, 北海道, 日本
Spanish:
Subprefectura de Rumoi, Prefectura de Hokkaidō, Japón
Basque:
Rumoi suprefetura, Japonia
Dutch:
Rumoi, Prefectuur Hokkaidō, Japan
Esperanto:
Rumoi-subgubernio, Hokajdo, Japanio
Galician:
Subprefectura de Rumoi, Xapón
Iloko:
Subprepektura ti Rumoi, Hapon
Indonesian:
Subprefektur Rumoi, Prefektur Hokkaido, Jepang
Korean:
루모이 진흥국, 홋카이도, 일본
Lithuanian:
Rumojaus subprefektūra, Japonija
Minnan / Hokkien-Taiwanese:
Rumoi Chìn-heng-kio̍k, Ji̍t-pún
Polish:
Podprefektura Rumoi, prefektura Hokkaido, Japonia
Tagalog:
Subprepektura ng Rumoi, Hapon
Thai:
กิ่งจังหวัดรูโมอิ, ประเทศญี่ปุ่น
Turkish:
Rumoi, Japonya
Ukrainian:
Округ Румой, Префектура Хоккайдо, Японія


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Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

63 valid minerals. 4 (TL) - type locality of valid minerals.

Detailed Mineral List:

ⓘ Acanthite
Formula: Ag2S
Reference: Zeeck, Lauren. (2018). The Role of Flashing in The Formation of High-Grade, Low-Sulfidation Epithermal Deposits: A Case Study from The Omu Camp in Hokkaido, Japaan. Master of Sciencee Colorado School of Mines
ⓘ Aguilarite
Formula: Ag4SeS
Reference: Zeeck, Lauren. (2018). The Role of Flashing in The Formation of High-Grade, Low-Sulfidation Epithermal Deposits: A Case Study from The Omu Camp in Hokkaido, Japaan. Master of Sciencee Colorado School of Mines
ⓘ Andradite
Formula: Ca3Fe3+2(SiO4)3
Reference: Nishio-Hamane, D., Saito, K. (2021) Au(Ag)–Sn–Sb–Pb minerals in association with placer gold from Rumoi province of Hokkaido, Japan: a description of two new minerals (rumoiite and shosanbetsuite). Journal of Mineralogical and Petrological Sciences, 116(5), 263-271.
ⓘ Antimony
Formula: Sb
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Anyuiite
Formula: AuPb2
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Aurostibite
Formula: AuSb2
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Bornite
Formula: Cu5FeS4
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Bowieite
Formula: Rh2S3
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Braggite
Formula: PdPt3S4
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Cassiterite
Formula: SnO2
Reference: Nishio-Hamane, D., Saito, K. (2021) Au(Ag)–Sn–Sb–Pb minerals in association with placer gold from Rumoi province of Hokkaido, Japan: a description of two new minerals (rumoiite and shosanbetsuite). Journal of Mineralogical and Petrological Sciences, 116(5), 263-271.
ⓘ Chalcocite
Formula: Cu2S
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Chengdeite
Formula: Ir3Fe
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Cherepanovite
Formula: RhAs
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Chromite
Formula: Fe2+Cr3+2O4
Reference: Nishio-Hamane, D., Saito, K. (2021) Au(Ag)–Sn–Sb–Pb minerals in association with placer gold from Rumoi province of Hokkaido, Japan: a description of two new minerals (rumoiite and shosanbetsuite). Journal of Mineralogical and Petrological Sciences, 116(5), 263-271.
ⓘ Cooperite
Formula: PtS
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Cuprorhodsite
Formula: (Cu1+0.5Fe3+0.5)Rh3+2S4
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Enstatite
Formula: Mg2Si2O6
Reference: Nishio-Hamane, D., Saito, K. (2021) Au(Ag)–Sn–Sb–Pb minerals in association with placer gold from Rumoi province of Hokkaido, Japan: a description of two new minerals (rumoiite and shosanbetsuite). Journal of Mineralogical and Petrological Sciences, 116(5), 263-271.
ⓘ Erlichmanite
Formula: OsS2
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Ezochiite (TL)
Formula: Cu+(Rh3+Pt4+)S4
Type Locality:
Reference: Nishio-Hamane, D., Saito, K.(2023): Ezochiite, IMA 2022-101, in: CNMNC Newsletter 71, Eur. J. Mineral.: 35, https://doi.org/10.5194/ejm-35-75-2023 http://forum.amiminerals.it/viewtopic.php?f=5&t=18473
trans.png
Ferronickelplatinum

Ainusawa River, Haboro, Tomamae District, Rumoi Subprefecture, Hokkaidō Prefecture, Japan
ⓘ Ferronickelplatinum
Formula: Pt2FeNi
Reference: Dr Daisuke Nishio-Hamane, SEM analysis, University of Tokyo Electron Microprobe Section. NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Garutiite
Formula: (Ni,Fe,Ir)
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Gold
Formula: Au
Localities: Reported from at least 10 localities in this region.
Reference: Nishio-Hamane, D., Saito, K. (2021) Au(Ag)–Sn–Sb–Pb minerals in association with placer gold from Rumoi province of Hokkaido, Japan: a description of two new minerals (rumoiite and shosanbetsuite). Journal of Mineralogical and Petrological Sciences, 116(5), 263-271.
ⓘ Gold var. Electrum
Formula: (Au,Ag)
Reference: Zeeck, Lauren. (2018). The Role of Flashing in The Formation of High-Grade, Low-Sulfidation Epithermal Deposits: A Case Study from The Omu Camp in Hokkaido, Japaan. Master of Sciencee Colorado School of Mines
ⓘ Hexaferrum
Formula: (Fe,Os,Ru,Ir)
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Hollingworthite
Formula: (Rh,Pt,Pd)AsS
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Hongshiite
Formula: PtCu
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Ilmenite
Formula: Fe2+TiO3
Reference: Nishio-Hamane, D., Saito, K. (2021) Au(Ag)–Sn–Sb–Pb minerals in association with placer gold from Rumoi province of Hokkaido, Japan: a description of two new minerals (rumoiite and shosanbetsuite). Journal of Mineralogical and Petrological Sciences, 116(5), 263-271.
trans.png
Irarsite, etc.

Ainusawa River, Haboro, Tomamae District, Rumoi Subprefecture, Hokkaidō Prefecture, Japan
ⓘ Irarsite
Formula: (Ir,Ru,Rh,Pt)AsS
Localities: Reported from at least 6 localities in this region.
Reference: Dr Daisuke Nishio-Hamane, SEM analysis, University of Tokyo Electron Microprobe Section. NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Iridarsenite
Formula: (Ir,Ru)As2
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Iridium
Formula: (Ir,Os,Ru)
Localities: Reported from at least 7 localities in this region.
Reference: Dr Daisuke Nishio-Hamane, SEM analysis, University of Tokyo Electron Microprobe Section. NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Isoferroplatinum
Formula: Pt3Fe
Localities: Reported from at least 7 localities in this region.
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Kashinite
Formula: Ir2S3
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ 'K Feldspar'
Formula: KAlSi3O8
Reference: Zeeck, Lauren. (2018). The Role of Flashing in The Formation of High-Grade, Low-Sulfidation Epithermal Deposits: A Case Study from The Omu Camp in Hokkaido, Japaan. Master of Sciencee Colorado School of Mines
ⓘ 'K Feldspar var. Adularia'
Formula: KAlSi3O8
Reference: Zeeck, Lauren. (2018). The Role of Flashing in The Formation of High-Grade, Low-Sulfidation Epithermal Deposits: A Case Study from The Omu Camp in Hokkaido, Japaan. Master of Sciencee Colorado School of Mines
ⓘ Kitagohaite
Formula: Pt7Cu
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Laurite
Formula: RuS2
Localities: Reported from at least 6 localities in this region.
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Lead
Formula: Pb
Reference: Nishio-Hamane, D., Saito, K. (2021) Au(Ag)–Sn–Sb–Pb minerals in association with placer gold from Rumoi province of Hokkaido, Japan: a description of two new minerals (rumoiite and shosanbetsuite). Journal of Mineralogical and Petrological Sciences, 116(5), 263-271.
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
Reference: Nishio-Hamane, D., Saito, K. (2021) Au(Ag)–Sn–Sb–Pb minerals in association with placer gold from Rumoi province of Hokkaido, Japan: a description of two new minerals (rumoiite and shosanbetsuite). Journal of Mineralogical and Petrological Sciences, 116(5), 263-271.
ⓘ Mertieite
Formula: Pd8Sb2.5As0.5
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Minakawaite
Formula: RhSb
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Orthocuproplatinum
Formula: Pt3Cu
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
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Osmium

Obirashibe River, Obira, Rumoi Subprefecture, Hokkaidō Prefecture, Japan
ⓘ Osmium
Formula: (Os,Ir,Ru)
Localities: Reported from at least 7 localities in this region.
Reference: Dr Daisuke Nishio-Hamane, SEM analysis, University of Tokyo Electron Microprobe Section. NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Palladoarsenide
Formula: Pd2As
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Palladodymite
Formula: (Pd,Rh)2As
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Platinum
Formula: Pt
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Polkanovite
Formula: Rh12As7
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Pyrargyrite
Formula: Ag3SbS3
Reference: Zeeck, Lauren. (2018). The Role of Flashing in The Formation of High-Grade, Low-Sulfidation Epithermal Deposits: A Case Study from The Omu Camp in Hokkaido, Japaan. Master of Sciencee Colorado School of Mines
ⓘ Quartz
Formula: SiO2
Reference: Zeeck, Lauren. (2018). The Role of Flashing in The Formation of High-Grade, Low-Sulfidation Epithermal Deposits: A Case Study from The Omu Camp in Hokkaido, Japaan. Master of Sciencee Colorado School of Mines
ⓘ Quartz var. Chalcedony
Formula: SiO2
Reference: Zeeck, Lauren. (2018). The Role of Flashing in The Formation of High-Grade, Low-Sulfidation Epithermal Deposits: A Case Study from The Omu Camp in Hokkaido, Japaan. Master of Science Colorado School of Mines
trans.png
Qusongite

Ainusawa River, Haboro, Tomamae District, Rumoi Subprefecture, Hokkaidō Prefecture, Japan
ⓘ Qusongite
Formula: WC
Reference: Dr Daisuke Nishio-Hamane, SEM and XRD analysis, University of Tokyo Electron Microprobe Section.; Nishio-Hamane D. and Saito K. (2019) Minerals from gold and PGM placer deposits from the Rumoi area in Hokkaido, Japan. Annual Meeting of Japan Association of Mineralogical Sciences, R1P-08. NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Rhodarsenide
Formula: (Rh,Pd)2As
Localities: Reported from at least 6 localities in this region.
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Rumoiite (TL)
Formula: AuSn2
Type Locality:
Reference: Nishio-Hamane, D. and Saito, K. (2019) Rumoiite, IMA 2018-161. CNMNC Newsletter No. 49, June 2019, page xxx; Mineralogical Magazine, 83: 323–328. Nishio-Hamane, D., Saito, K. (2021) Au(Ag)–Sn–Sb–Pb minerals in association with placer gold from Rumoi province of Hokkaido, Japan: a description of two new minerals (rumoiite and shosanbetsuite). Journal of Mineralogical and Petrological Sciences, 116(5), 263-271.
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Rutheniridosmine

Ainusawa River, Haboro, Tomamae District, Rumoi Subprefecture, Hokkaidō Prefecture, Japan
ⓘ Rutheniridosmine
Formula: (Ir,Os,Ru)
Localities: Reported from at least 7 localities in this region.
Reference: Dr Daisuke Nishio-Hamane, SEM analysis, University of Tokyo Electron Microprobe Section. NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
trans.png
Ruthenium

Kagawa, Tomamae, Tomamae District, Rumoi Subprefecture, Hokkaidō Prefecture, Japan
ⓘ Ruthenium
Formula: (Ru,Ir)
Localities: Reported from at least 8 localities in this region.
Reference: Dr Daisuke Nishio-Hamane, SEM analysis, University of Tokyo Electron Microprobe Section.
ⓘ Shosanbetsuite (TL)
Formula: Ag3Sn
Type Locality:
Reference: Nishio-Hamane, D., Saito, K. (2021) Au(Ag)–Sn–Sb–Pb minerals in association with placer gold from Rumoi province of Hokkaido, Japan: a description of two new minerals (rumoiite and shosanbetsuite). Journal of Mineralogical and Petrological Sciences, 116(5), 263-271.; Nishio-Hamane, D. and Saito, K. (2019) Shosanbetsuite, IMA 2018-162. CNMNC Newsletter No. 49, June 2019, page xxx. Mineralogical Magazine, 83, 323–328.
ⓘ Skaergaardite
Formula: PdCu
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Sperrylite
Formula: PtAs2
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Stibiopalladinite
Formula: Pd5Sb2
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Tetraferroplatinum
Formula: PtFe
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Tolovkite
Formula: IrSbS
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Tomamaeite (TL)
Formula: Cu3Pt
Description: As inclusions in platinum-group mineral (PGM) grain
Reference: Nishio-Hamane, D. and Saito, K. (2020) Tomamaeite, IMA 2019-129. CNMNC Newsletter No. 55; Mineralogical Magazine, 84, https://doi.org/10.1180/mgm.2020.39 NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Törnroosite
Formula: Pd11As2Te2
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Tulameenite
Formula: Pt2CuFe
Localities: Reported from at least 7 localities in this region.
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Vysotskite
Formula: PdS
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Yuanjiangite
Formula: AuSn
Reference: Nishio-Hamane, D., Saito, K. (2021) Au(Ag)–Sn–Sb–Pb minerals in association with placer gold from Rumoi province of Hokkaido, Japan: a description of two new minerals (rumoiite and shosanbetsuite). Journal of Mineralogical and Petrological Sciences, 116(5), 263-271.
ⓘ Zaccariniite
Formula: RhNiAs
Reference: NISHIO–HAMANE, D., & Saito, K. (2022). Platinum–group minerals in the placer deposit in northwestern Hokkaido, Japan: description of a new mineral, tomamaeite. Journal of Mineralogical and Petrological Sciences, 117(1), 220309.
ⓘ Zircon
Formula: Zr(SiO4)
Reference: Nishio-Hamane, D., Saito, K. (2021) Au(Ag)–Sn–Sb–Pb minerals in association with placer gold from Rumoi province of Hokkaido, Japan: a description of two new minerals (rumoiite and shosanbetsuite). Journal of Mineralogical and Petrological Sciences, 116(5), 263-271.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘAntimony1.CA.05Sb
ⓘAnyuiite1.AA.15AuPb2
ⓘChengdeite1.AG.35Ir3Fe
ⓘFerronickelplatinum1.AG.40Pt2FeNi
ⓘGarutiite1.AG.05(Ni,Fe,Ir)
ⓘGold1.AA.05Au
ⓘvar. Electrum1.AA.05(Au,Ag)
ⓘHexaferrum1.AG.05(Fe,Os,Ru,Ir)
ⓘHongshiite1.AG.45PtCu
ⓘIridium1.AF.10(Ir,Os,Ru)
ⓘIsoferroplatinum1.AG.35Pt3Fe
ⓘKitagohaite1.A0.Pt7Cu
ⓘLead1.AA.05Pb
ⓘOrthocuproplatinum1.AH.Pt3Cu
ⓘOsmium1.AF.05(Os,Ir,Ru)
ⓘPlatinum1.AF.10Pt
ⓘQusongite1.BA.25WC
ⓘRumoiite (TL)1.AC.20AuSn2
ⓘRutheniridosmine1.AF.05(Ir,Os,Ru)
ⓘRuthenium1.AF.05(Ru,Ir)
ⓘShosanbetsuite (TL)1.AD.35Ag3Sn
ⓘSkaergaardite1.AG.45PdCu
ⓘTetraferroplatinum1.AG.40PtFe
ⓘTomamaeite (TL)1.AH.Cu3Pt
ⓘTulameenite1.AG.40Pt2CuFe
ⓘYuanjiangite1.AC.15AuSn
Group 2 - Sulphides and Sulfosalts
ⓘAcanthite2.BA.35Ag2S
ⓘAguilarite2.BA.55Ag4SeS
ⓘAurostibite2.EB.05aAuSb2
ⓘBornite2.BA.15Cu5FeS4
ⓘBowieite2.DB.15Rh2S3
ⓘBraggite2.CC.35aPdPt3S4
ⓘChalcocite2.BA.05Cu2S
ⓘCherepanovite2.CC.15RhAs
ⓘCooperite2.CC.35bPtS
ⓘCuprorhodsite2.DA.05(Cu1+0.5Fe3+0.5)Rh3+2S4
ⓘErlichmanite2.EB.05aOsS2
ⓘEzochiite (TL)2.DA.Cu+(Rh3+Pt4+)S4
ⓘHollingworthite2.EB.25(Rh,Pt,Pd)AsS
ⓘIrarsite2.EB.25(Ir,Ru,Rh,Pt)AsS
ⓘIridarsenite2.EB.(Ir,Ru)As2
ⓘKashinite2.DB.15Ir2S3
ⓘLaurite2.EB.05aRuS2
ⓘMertieite2.AC.10bPd8Sb2.5As0.5
ⓘMinakawaite2.CC.15RhSb
ⓘPalladoarsenide2.AC.25aPd2As
ⓘPalladodymite2.AC.25c(Pd,Rh)2As
ⓘPolkanovite2.AC.30Rh12As7
ⓘPyrargyrite2.GA.05Ag3SbS3
ⓘRhodarsenide2.AC.25b(Rh,Pd)2As
ⓘSperrylite2.EB.05aPtAs2
ⓘStibiopalladinite2.AC.20aPd5Sb2
ⓘTolovkite2.EB.25IrSbS
ⓘTörnroosite2.AC.Pd11As2Te2
ⓘVysotskite2.CC.35aPdS
ⓘZaccariniite2.AA.50RhNiAs
Group 4 - Oxides and Hydroxides
ⓘCassiterite4.DB.05SnO2
ⓘChromite4.BB.05Fe2+Cr3+2O4
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘQuartz4.DA.05SiO2
ⓘvar. Chalcedony4.DA.05SiO2
Group 9 - Silicates
ⓘAndradite9.AD.25Ca3Fe3+2(SiO4)3
ⓘEnstatite9.DA.05Mg2Si2O6
ⓘZircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
ⓘ'K Feldspar'-KAlSi3O8
ⓘ'var. Adularia'-KAlSi3O8

List of minerals for each chemical element

CCarbon
Cⓘ QusongiteWC
OOxygen
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ IlmeniteFe2+TiO3
Oⓘ ZirconZr(SiO4)
Oⓘ AndraditeCa3Fe23+(SiO4)3
Oⓘ EnstatiteMg2Si2O6
Oⓘ CassiteriteSnO2
Oⓘ K Feldspar var. AdulariaKAlSi3O8
Oⓘ QuartzSiO2
Oⓘ K FeldsparKAlSi3O8
Oⓘ Quartz var. ChalcedonySiO2
MgMagnesium
Mgⓘ EnstatiteMg2Si2O6
AlAluminium
Alⓘ K Feldspar var. AdulariaKAlSi3O8
Alⓘ K FeldsparKAlSi3O8
SiSilicon
Siⓘ ZirconZr(SiO4)
Siⓘ AndraditeCa3Fe23+(SiO4)3
Siⓘ EnstatiteMg2Si2O6
Siⓘ K Feldspar var. AdulariaKAlSi3O8
Siⓘ QuartzSiO2
Siⓘ K FeldsparKAlSi3O8
Siⓘ Quartz var. ChalcedonySiO2
SSulfur
Sⓘ EzochiiteCu+(Rh3+Pt4+)S4
Sⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Sⓘ AcanthiteAg2S
Sⓘ AguilariteAg4SeS
Sⓘ PyrargyriteAg3SbS3
Sⓘ BowieiteRh2S3
Sⓘ BraggitePdPt3S4
Sⓘ CooperitePtS
Sⓘ Cuprorhodsite(Cu1+0.5Fe3+0.5)Rh23+S4
Sⓘ ErlichmaniteOsS2
Sⓘ Hollingworthite(Rh,Pt,Pd)AsS
Sⓘ LauriteRuS2
Sⓘ ChalcociteCu2S
Sⓘ BorniteCu5FeS4
Sⓘ KashiniteIr2S3
Sⓘ VysotskitePdS
Sⓘ TolovkiteIrSbS
KPotassium
Kⓘ K Feldspar var. AdulariaKAlSi3O8
Kⓘ K FeldsparKAlSi3O8
CaCalcium
Caⓘ AndraditeCa3Fe23+(SiO4)3
TiTitanium
Tiⓘ IlmeniteFe2+TiO3
CrChromium
Crⓘ ChromiteFe2+Cr23+O4
FeIron
Feⓘ FerronickelplatinumPt2FeNi
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ IlmeniteFe2+TiO3
Feⓘ AndraditeCa3Fe23+(SiO4)3
Feⓘ Cuprorhodsite(Cu1+0.5Fe3+0.5)Rh23+S4
Feⓘ Garutiite(Ni,Fe,Ir)
Feⓘ IsoferroplatinumPt3Fe
Feⓘ TetraferroplatinumPtFe
Feⓘ TulameenitePt2CuFe
Feⓘ BorniteCu5FeS4
Feⓘ ChengdeiteIr3Fe
Feⓘ Hexaferrum(Fe,Os,Ru,Ir)
NiNickel
Niⓘ FerronickelplatinumPt2FeNi
Niⓘ Garutiite(Ni,Fe,Ir)
Niⓘ ZaccariniiteRhNiAs
CuCopper
Cuⓘ TomamaeiteCu3Pt
Cuⓘ EzochiiteCu+(Rh3+Pt4+)S4
Cuⓘ Cuprorhodsite(Cu1+0.5Fe3+0.5)Rh23+S4
Cuⓘ HongshiitePtCu
Cuⓘ KitagohaitePt7Cu
Cuⓘ TulameenitePt2CuFe
Cuⓘ OrthocuproplatinumPt3Cu
Cuⓘ ChalcociteCu2S
Cuⓘ BorniteCu5FeS4
Cuⓘ SkaergaarditePdCu
AsArsenic
Asⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Asⓘ CherepanoviteRhAs
Asⓘ Hollingworthite(Rh,Pt,Pd)AsS
Asⓘ MertieitePd8Sb2.5As0.5
Asⓘ PalladoarsenidePd2As
Asⓘ Palladodymite(Pd,Rh)2As
Asⓘ Rhodarsenide(Rh,Pd)2As
Asⓘ SperrylitePtAs2
Asⓘ ZaccariniiteRhNiAs
Asⓘ TörnroositePd11As2Te2
Asⓘ Iridarsenite(Ir,Ru)As2
Asⓘ PolkanoviteRh12As7
SeSelenium
Seⓘ AguilariteAg4SeS
ZrZirconium
Zrⓘ ZirconZr(SiO4)
RuRuthenium
Ruⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Ruⓘ Iridium(Ir,Os,Ru)
Ruⓘ Rutheniridosmine(Ir,Os,Ru)
Ruⓘ Osmium(Os,Ir,Ru)
Ruⓘ Ruthenium(Ru,Ir)
Ruⓘ LauriteRuS2
Ruⓘ Iridarsenite(Ir,Ru)As2
Ruⓘ Hexaferrum(Fe,Os,Ru,Ir)
RhRhodium
Rhⓘ EzochiiteCu+(Rh3+Pt4+)S4
Rhⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Rhⓘ BowieiteRh2S3
Rhⓘ CherepanoviteRhAs
Rhⓘ Cuprorhodsite(Cu1+0.5Fe3+0.5)Rh23+S4
Rhⓘ Hollingworthite(Rh,Pt,Pd)AsS
Rhⓘ MinakawaiteRhSb
Rhⓘ Palladodymite(Pd,Rh)2As
Rhⓘ Rhodarsenide(Rh,Pd)2As
Rhⓘ ZaccariniiteRhNiAs
Rhⓘ PolkanoviteRh12As7
PdPalladium
Pdⓘ BraggitePdPt3S4
Pdⓘ Hollingworthite(Rh,Pt,Pd)AsS
Pdⓘ MertieitePd8Sb2.5As0.5
Pdⓘ PalladoarsenidePd2As
Pdⓘ Palladodymite(Pd,Rh)2As
Pdⓘ Rhodarsenide(Rh,Pd)2As
Pdⓘ StibiopalladinitePd5Sb2
Pdⓘ SkaergaarditePdCu
Pdⓘ TörnroositePd11As2Te2
Pdⓘ VysotskitePdS
AgSilver
Agⓘ ShosanbetsuiteAg3Sn
Agⓘ AcanthiteAg2S
Agⓘ AguilariteAg4SeS
Agⓘ Gold var. Electrum(Au,Ag)
Agⓘ PyrargyriteAg3SbS3
SnTin
Snⓘ RumoiiteAuSn2
Snⓘ ShosanbetsuiteAg3Sn
Snⓘ CassiteriteSnO2
Snⓘ YuanjiangiteAuSn
SbAntimony
Sbⓘ PyrargyriteAg3SbS3
Sbⓘ MertieitePd8Sb2.5As0.5
Sbⓘ MinakawaiteRhSb
Sbⓘ StibiopalladinitePd5Sb2
Sbⓘ AntimonySb
Sbⓘ AurostibiteAuSb2
Sbⓘ TolovkiteIrSbS
TeTellurium
Teⓘ TörnroositePd11As2Te2
WTungsten
Wⓘ QusongiteWC
OsOsmium
Osⓘ Iridium(Ir,Os,Ru)
Osⓘ Rutheniridosmine(Ir,Os,Ru)
Osⓘ Osmium(Os,Ir,Ru)
Osⓘ ErlichmaniteOsS2
Osⓘ Hexaferrum(Fe,Os,Ru,Ir)
IrIridium
Irⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Irⓘ Iridium(Ir,Os,Ru)
Irⓘ Rutheniridosmine(Ir,Os,Ru)
Irⓘ Osmium(Os,Ir,Ru)
Irⓘ Ruthenium(Ru,Ir)
Irⓘ Garutiite(Ni,Fe,Ir)
Irⓘ KashiniteIr2S3
Irⓘ ChengdeiteIr3Fe
Irⓘ Iridarsenite(Ir,Ru)As2
Irⓘ TolovkiteIrSbS
Irⓘ Hexaferrum(Fe,Os,Ru,Ir)
PtPlatinum
Ptⓘ TomamaeiteCu3Pt
Ptⓘ EzochiiteCu+(Rh3+Pt4+)S4
Ptⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Ptⓘ FerronickelplatinumPt2FeNi
Ptⓘ BraggitePdPt3S4
Ptⓘ CooperitePtS
Ptⓘ Hollingworthite(Rh,Pt,Pd)AsS
Ptⓘ HongshiitePtCu
Ptⓘ IsoferroplatinumPt3Fe
Ptⓘ KitagohaitePt7Cu
Ptⓘ SperrylitePtAs2
Ptⓘ TetraferroplatinumPtFe
Ptⓘ TulameenitePt2CuFe
Ptⓘ PlatinumPt
Ptⓘ OrthocuproplatinumPt3Cu
AuGold
Auⓘ RumoiiteAuSn2
Auⓘ GoldAu
Auⓘ YuanjiangiteAuSn
Auⓘ Gold var. Electrum(Au,Ag)
Auⓘ AnyuiiteAuPb2
Auⓘ AurostibiteAuSb2
PbLead
Pbⓘ LeadPb
Pbⓘ AnyuiiteAuPb2

Fossils

There are 43 fossil localities from the PaleoBioDB database within this region.

BETA TEST - These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.

Occurrences536
Youngest Fossil Listed1.81 Ma (Pleistocene)
Oldest Fossil Listed101 Ma (Late/Upper Cretaceous)
Stratigraphic UnitsClick here to view 27 stratigraphic units.
Fossils from RegionClick here to show the list.
Accepted NameHierarchy Age
Anthozoa
class		Animalia : Cnidaria : Anthozoa86.3 - 83.6 Ma
Late/Upper Cretaceous
Scaphopoda
class		Animalia : Mollusca : Scaphopoda86.3 - 72.1 Ma
Late/Upper Cretaceous
Siphonodentalium
genus		Animalia : Mollusca : Scaphopoda : Gadilida : Gadilidae : Siphonodentalium37.2 - 33.9 Ma
Paleogene
Gastropoda
class		Animalia : Mollusca : Gastropoda86.3 - 72.1 Ma
Late/Upper Cretaceous
Patelloida
genus		Animalia : Mollusca : Gastropoda : Lottiidae : Patelloida93.5 - 89.3 Ma
Late/Upper Cretaceous
Crepidula
genus		Animalia : Mollusca : Gastropoda : Littorinimorpha : Calyptraeidae : Crepidula37.2 - 33.9 Ma
Paleogene
Gyrodes
genus		Animalia : Mollusca : Gastropoda : Littorinimorpha : Naticidae : Gyrodes83.6 - 72.1 Ma
Late/Upper Cretaceous
Turritella
genus		Animalia : Mollusca : Gastropoda : Turritellidae : Turritella37.2 - 33.9 Ma
Paleogene
Vicarya
genus		Animalia : Mollusca : Gastropoda : Potamididae : Vicarya23.03 - 5.333 Ma
Miocene
Trominina
genus		Animalia : Mollusca : Gastropoda : Neogastropoda : Buccinidae : Trominina15.97 - 11.608 Ma
Miocene
Avellana
genus		Animalia : Mollusca : Gastropoda : Cephalaspidea : Ringiculidae : Avellana86.3 - 72.1 Ma
Late/Upper Cretaceous
Anisomyon
genus		Animalia : Mollusca : Gastropoda : Siphonariida : Siphonariidae : Anisomyon86.3 - 72.1 Ma
Late/Upper Cretaceous
Neophylloceras
genus		Animalia : Mollusca : Cephalopoda : Ammonoidea : Phylloceratidae : Neophylloceras93.9 - 83.6 Ma
Late/Upper Cretaceous
Phyllopachyceras
genus		Animalia : Mollusca : Cephalopoda : Ammonoidea : Phylloceratidae : Phyllopachyceras86.3 - 83.6 Ma
Late/Upper Cretaceous
Ammonoidea
order		Animalia : Mollusca : Cephalopoda : Ammonoidea86.3 - 83.6 Ma
Late/Upper Cretaceous
Anagaudryceras
genus		Animalia : Mollusca : Cephalopoda : Ammonoidea : Gaudryceratidae : Anagaudryceras83.6 - 72.1 Ma
Late/Upper Cretaceous
Baculites
genus		Animalia : Mollusca : Cephalopoda : Ammonoidea : Baculitidae : Baculites86.3 - 72.1 Ma
Late/Upper Cretaceous
Damesites
genus		Animalia : Mollusca : Cephalopoda : Ammonoidea : Desmoceratidae : Damesites93.9 - 72.1 Ma
Late/Upper Cretaceous
Eubostrychoceras
genus		Animalia : Mollusca : Cephalopoda : Ammonoidea : Nostoceratidae : Eubostrychoceras93.9 - 89.8 Ma
Late/Upper Cretaceous
Gaudryceras
genus		Animalia : Mollusca : Cephalopoda : Ammonoidea : Gaudryceratidae : Gaudryceras86.3 - 72.1 Ma
Late/Upper Cretaceous
Hyphantoceras
genus		Animalia : Mollusca : Cephalopoda : Ammonoidea : Nostoceratidae : Hyphantoceras93.9 - 72.1 Ma
Late/Upper Cretaceous
Hyphantoceras (Madagascarites)
subgenus		Animalia : Mollusca : Cephalopoda : Ammonitida : Nostoceratidae : Hyphantoceras : Hyphantoceras (Madagascarites)93.9 - 89.8 Ma
Late/Upper Cretaceous
Mesopuzosia
genus		Animalia : Mollusca : Cephalopoda : Ammonoidea : Desmoceratidae : Mesopuzosia93.9 - 89.3 Ma
Late/Upper Cretaceous
Polyptychoceras
genus		Animalia : Mollusca : Cephalopoda : Ammonoidea : Diplomoceratidae : Polyptychoceras86.3 - 83.5 Ma
Late/Upper Cretaceous
Scalarites
genus		Animalia : Mollusca : Cephalopoda : Ammonoidea : Diplomoceratidae : Scalarites93.9 - 89.8 Ma
Late/Upper Cretaceous
Scaphites
genus		Animalia : Mollusca : Cephalopoda : Ammonoidea : Scaphitidae : Scaphites93.9 - 86.3 Ma
Late/Upper Cretaceous
Tetragonites
genus		Animalia : Mollusca : Cephalopoda : Ammonitida : Tetragonitidae : Tetragonites86.3 - 72.1 Ma
Late/Upper Cretaceous
Yezoites
genus		Animalia : Mollusca : Cephalopoda : Ammonoidea : Scaphitidae : Yezoites93.9 - 89.3 Ma
Late/Upper Cretaceous
Naefia
genus		Animalia : Mollusca : Cephalopoda : Sepiida : Naefia86.3 - 72.1 Ma
Late/Upper Cretaceous
Acila
genus		Animalia : Mollusca : Bivalvia : Nuculida : Nuculidae : Acila86.3 - 33.9 Ma
Phanerozoic
Malletia
genus		Animalia : Mollusca : Bivalvia : Nuculanida : Malletiidae : Malletia37.2 - 33.9 Ma
Paleogene
Megayoldia
genus		Animalia : Mollusca : Bivalvia : Nuculanida : Yoldiidae : Megayoldia23.03 - 15.97 Ma
Miocene
Neilonella
genus		Animalia : Mollusca : Bivalvia : Nuculanida : Neilonellidae : Neilonella37.2 - 33.9 Ma
Paleogene
Portlandia
genus		Animalia : Mollusca : Bivalvia : Portlandia37.2 - 33.9 Ma
Paleogene
Acila (Truncacila)
subgenus		Animalia : Mollusca : Bivalvia : Nuculida : Nuculidae : Acila : Acila (Truncacila)100.5 - 93.9 Ma
Late/Upper Cretaceous
Yoldia
genus		Animalia : Mollusca : Bivalvia : Nuculanida : Yoldiidae : Yoldia37.2 - 33.9 Ma
Paleogene
Adulomya
genus		Animalia : Mollusca : Bivalvia : Venerida : Vesicomyidae : Adulomya15.97 - 11.608 Ma
Miocene
Nucinella
genus		Animalia : Mollusca : Bivalvia : Solemyida : Nucinellidae : Nucinella100.5 - 93.9 Ma
Late/Upper Cretaceous
Solemya
genus		Animalia : Mollusca : Bivalvia : Solemyida : Solemyidae : Solemya15.97 - 11.608 Ma
Miocene
Nanonavis
genus		Animalia : Mollusca : Bivalvia : Arcida : Parallelodontidae : Nanonavis86.3 - 83.6 Ma
Late/Upper Cretaceous
Fortipecten
genus		Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Fortipecten5.333 - 3.6 Ma
Neogene
Inoceramus
genus		Animalia : Mollusca : Bivalvia : Myalinida : Inoceramidae : Inoceramus93.5 - 89.3 Ma
Late/Upper Cretaceous
Parvamussium
genus		Animalia : Mollusca : Bivalvia : Pectinida : Propeamussiidae : Parvamussium86.3 - 72.1 Ma
Late/Upper Cretaceous
Inoceramus (Sphenoceramus)
subgenus		Animalia : Mollusca : Bivalvia : Myalinida : Inoceramidae : Inoceramus : Inoceramus (Sphenoceramus)86.3 - 72.1 Ma
Late/Upper Cretaceous
Callista
genus		Animalia : Mollusca : Bivalvia : Venerida : Veneridae : Callista37.2 - 33.9 Ma
Paleogene
Vesicomya (Calyptogena)
subgenus		Animalia : Mollusca : Bivalvia : Veneroidei : Vesicomyidae : Vesicomya : Vesicomya (Calyptogena)15.97 - 11.608 Ma
Miocene
Corbicula
genus		Animalia : Mollusca : Bivalvia : Venerida : Cyrenidae : Corbicula37.2 - 33.9 Ma
Paleogene
Cyclocardia
genus		Animalia : Mollusca : Bivalvia : Carditida : Carditidae : Cyclocardia37.2 - 33.9 Ma
Paleogene
Macoma
genus		Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Macoma23.03 - 15.97 Ma
Miocene
Mactromeris
genus		Animalia : Mollusca : Bivalvia : Venerida : Mactridae : Mactromeris23.03 - 15.97 Ma
Miocene
Tellina (Megangulus)
subgenus		Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Tellina : Tellina (Megangulus)23.03 - 15.97 Ma
Miocene
Nemocardium
genus		Animalia : Mollusca : Bivalvia : Cardiida : Cardiidae : Nemocardium37.2 - 33.9 Ma
Paleogene
Pitar
genus		Animalia : Mollusca : Bivalvia : Venerida : Veneridae : Pitar37.2 - 33.9 Ma
Paleogene
Thyasira
genus		Animalia : Mollusca : Bivalvia : Lucinida : Thyasiridae : Thyasira100.5 - 93.9 Ma
Late/Upper Cretaceous
Vesicomya
genus		Animalia : Mollusca : Bivalvia : Venerida : Vesicomyidae : Vesicomya15.97 - 11.608 Ma
Miocene
Penitella
genus		Animalia : Mollusca : Bivalvia : Myida : Pholadidae : Penitella23.03 - 15.97 Ma
Miocene
Periploma (Aelga)
subgenus		Animalia : Mollusca : Bivalvia : Thraciida : Periplomatidae : Periploma : Periploma (Aelga)37.2 - 33.9 Ma
Paleogene
Periploma
genus		Animalia : Mollusca : Bivalvia : Periplomatidae : Periploma37.2 - 33.9 Ma
Paleogene
Thracia
genus		Animalia : Mollusca : Bivalvia : Thraciidae : Thracia37.2 - 33.9 Ma
Paleogene
Osteichthyes
unranked clade		Animalia : Chordata : Osteichthyes5.333 - 3.6 Ma
Neogene
Elasmosaurus
genus		Animalia : Chordata : Reptilia : Elasmosauridae : Elasmosaurus93.9 - 83.5 Ma
Late/Upper Cretaceous
Balaenula
genus		Animalia : Chordata : Mammalia : Cetacea : Balaenidae : Balaenula5.333 - 3.6 Ma
Neogene
Eschrichtius
genus		Animalia : Chordata : Mammalia : Cetacea : Eschrichtiidae : Eschrichtius2.588 - 1.806 Ma
Pleistocene
Sirenia
family		Animalia : Chordata : Mammalia : Sirenia11.608 - 5.333 Ma
Miocene
Atopotarus
genus		Animalia : Chordata : Mammalia : Carnivora : Otariidae : Atopotarus15.97 - 13.82 Ma
Miocene
Paleoparadoxia
genus		Animalia : Chordata : Mammalia : Paleoparadoxiidae : Paleoparadoxia23.03 - 11.608 Ma
Miocene
Ornithocheiridae
family		Animalia : Chordata : Reptilia : Pterosauria : Ornithocheiridae83.5 - 70.6 Ma
Late/Upper Cretaceous
Hadrosauridae
family		Animalia : Chordata : Reptilia : Dinosauria : Hadrosauridae89.8 - 86.3 Ma
Late/Upper Cretaceous
Ziphiidae
family		Animalia : Chordata : Mammalia : Cetacea : Ziphiidae7.246 - 5.333 Ma
Miocene
Delphinidae
family		Animalia : Chordata : Mammalia : Cetacea : Delphinidae5.333 - 3.6 Ma
Neogene
Mysticeti
suborder		Animalia : Chordata : Mammalia : Cetacea : Mysticeti5.333 - 3.6 Ma
Neogene
Balaenopteridae
family		Animalia : Chordata : Mammalia : Cetacea : Balaenopteridae5.333 - 3.6 Ma
Neogene
Fagus
genus		Plantae : Tracheophyta : Magnoliopsida : Fagales : Fagaceae : Fagus11.608 - 5.333 Ma
Miocene
Trionychinae
unranked clade		Animalia : Chordata : Reptilia : Testudines : Trionychidae : Trionychinae23.03 - 5.333 Ma
Miocene
Adipicola
genus		Animalia : Mollusca : Bivalvia : Mytilida : Mytilidae : Adipicola15.97 - 11.608 Ma
Miocene
Collignoniceratidae
family		Animalia : Mollusca : Cephalopoda : Ammonoidea : Collignoniceratidae86.3 - 83.6 Ma
Late/Upper Cretaceous
Lucinidae
family		Animalia : Mollusca : Bivalvia : Lucinida : Lucinidae100.5 - 93.9 Ma
Late/Upper Cretaceous
Naticidae
family		Animalia : Mollusca : Gastropoda : Littorinimorpha : Naticidae15.97 - 11.608 Ma
Miocene
Cetotheriidae
family		Animalia : Chordata : Mammalia : Cetacea : Cetotheriidae15.97 - 11.608 Ma
Miocene
Haborophocoena toyoshimai
species		Animalia : Chordata : Mammalia : Cetacea : Phocoenidae : Haborophocoena : Haborophocoena toyoshimai5.333 - 3.6 Ma
Neogene
Navicula
genus		Chromista : Ochrophyta : Bacillariophyceae : Naviculales : Naviculaceae : Navicula5.333 - 3.6 Ma
Neogene
Raphoneis
genus		Chromista : Ochrophyta : Bacillariophyceae : Diatomaceae : Raphoneis5.333 - 3.6 Ma
Neogene
Cladogramma
genus		Chromista : Ochrophyta : Bacillariophyceae : Cladogramma5.333 - 3.6 Ma
Neogene
Hyalodiscus
genus		Protozoa : Amoebozoa : Lobosa : Amoebida : Hyalodiscidae : Hyalodiscus5.333 - 3.6 Ma
Neogene
Proboscia
genus		Chromista : Ochrophyta : Bacillariophyceae : Rhizosoleniales : Rhizosoleniaceae : Proboscia5.333 - 3.6 Ma
Neogene
Pseudopodosira
genus		Chromista : Ochrophyta : Bacillariophyceae : Melosirales : Melosiraceae : Pseudopodosira5.333 - 3.6 Ma
Neogene
Pyxidicula
genus		Chromista : Ochrophyta : Bacillariophyceae : Rhopalodiales : Rhopalodiaceae : Pyxidicula5.333 - 3.6 Ma
Neogene
Rhizosolenia
genus		Chromista : Ochrophyta : Bacillariophyceae : Rhizosoleniales : Rhizosoleniaceae : Rhizosolenia5.333 - 3.6 Ma
Neogene
Stephanopyxis
genus		Chromista : Ochrophyta : Bacillariophyceae : Melosirales : Stephanopyxidaceae : Stephanopyxis5.333 - 3.6 Ma
Neogene
Melosira
genus		Chromista : Ochrophyta : Bacillariophyceae : Melosirales : Melosiraceae : Melosira5.333 - 3.6 Ma
Neogene
Desmostylus hesperus
species		Animalia : Chordata : Mammalia : Desmostylidae : Desmostylus : Desmostylus hesperus23.03 - 5.333 Ma
Miocene
Cosmiodiscus
genus		Chromista : Ochrophyta : Bacillariophyceae : Coscinodiscales : Coscinodiscaceae : Cosmiodiscus5.333 - 3.6 Ma
Neogene
Cymatosira
genus		Chromista : Ochrophyta : Bacillariophyceae : Cymatosirales : Cymatosiraceae : Cymatosira5.333 - 3.6 Ma
Neogene
Delphineis
genus		Chromista : Ochrophyta : Bacillariophyceae : Rhaponeidales : Rhaphoneidaceae : Delphineis5.333 - 3.6 Ma
Neogene
Nitzschia
genus		Bacillariophyta : Nitzschia5.333 - 3.6 Ma
Neogene
Thalassionema
genus		Chromista : Ochrophyta : Bacillariophyceae : Thalassionematales : Thalassionemataceae : Thalassionema5.333 - 3.6 Ma
Neogene
Thalassiosira
genus		Chromista : Ochrophyta : Bacillariophyceae : Thalassiosirales : Thalassiosiraceae : Thalassiosira11.608 - 3.6 Ma
Neogene
Thalassiothrix
genus		Chromista : Ochrophyta : Bacillariophyceae : Thalassionematales : Thalassionemataceae : Thalassiothrix5.333 - 3.6 Ma
Neogene
Yokoyamaoceras
genus		Animalia : Mollusca : Cephalopoda : Ammonoidea : Kossmaticeratidae : Yokoyamaoceras86.3 - 83.6 Ma
Late/Upper Cretaceous
Pachydiscidae
family		Animalia : Mollusca : Cephalopoda : Ammonoidea : Pachydiscidae86.3 - 83.6 Ma
Late/Upper Cretaceous
Fragilaria
genus		Chromista : Ochrophyta : Bacillariophyceae : Fragilariales : Fragilariaceae : Fragilaria5.333 - 3.6 Ma
Neogene
Mya (Mya) truncata
species		Animalia : Mollusca : Bivalvia : Pholadida : Myidae : Mya : Mya (Mya) truncata37.2 - 15.97 Ma
Cenozoic
Inoceramus (Inoceramus)
subgenus		Animalia : Mollusca : Bivalvia : Myalinida : Inoceramidae : Inoceramus : Inoceramus (Inoceramus)100.5 - 83.6 Ma
Late/Upper Cretaceous
Yoldia (Yoldia) biremis
species		Animalia : Mollusca : Bivalvia : Nuculanida : Yoldiidae : Yoldia : Yoldia (Yoldia) biremis37.2 - 15.97 Ma
Cenozoic
Yoldia (Orthoyoldia) haboroensis
species		Animalia : Mollusca : Bivalvia : Nuculanida : Nuculanidae : Orthoyoldia : Yoldia (Orthoyoldia) haboroensis37.2 - 33.9 Ma
Paleogene
Periploma (Periploma) pulchella
species		Animalia : Mollusca : Bivalvia : Thraciida : Periplomatidae : Periploma : Periploma (Periploma) pulchella37.2 - 33.9 Ma
Paleogene
Mya convexa
species		Animalia : Mollusca : Bivalvia : Myida : Myidae : Mya : Mya convexa37.2 - 33.9 Ma
Paleogene
Mya salmonensis
species		Animalia : Mollusca : Bivalvia : Myida : Myidae : Mya : Mya salmonensis37.2 - 33.9 Ma
Paleogene
Acila (Acila) brevis
species		Animalia : Mollusca : Bivalvia : Nuculida : Nuculidae : Acila : Acila (Acila) brevis37.2 - 33.9 Ma
Paleogene
Nemocardium (Nemocardium) yokoyamai
species		Animalia : Mollusca : Bivalvia : Cardiida : Cardiidae : Nemocardium : Nemocardium (Nemocardium) yokoyamai37.2 - 15.97 Ma
Cenozoic
Yoldia (Cnesterium) notabilis
species		Animalia : Mollusca : Bivalvia : Nuculanida : Yoldiidae : Yoldia : Yoldia (Cnesterium) notabilis23.03 - 15.97 Ma
Miocene
Platyodon nipponica
species		Animalia : Mollusca : Bivalvia : Myida : Myidae : Platyodon : Platyodon nipponica23.03 - 15.97 Ma
Miocene
Mytilus (Mytilus) haboroensis
species		Animalia : Mollusca : Bivalvia : Mytilida : Mytilidae : Mytilus : Mytilus (Mytilus) haboroensis23.03 - 15.97 Ma
Miocene
Zelandites
genus		Animalia : Mollusca : Cephalopoda : Ammonoidea : Gaudryceratidae : Zelandites83.6 - 72.1 Ma
Late/Upper Cretaceous
Polycotylidae
family		Animalia : Chordata : Reptilia : Polycotylidae99.6 - 89.3 Ma
Late/Upper Cretaceous
Mya (Arenomya) grewingki
species		Animalia : Mollusca : Bivalvia : Pholadida : Myidae : Mya : Mya (Arenomya) grewingki37.2 - 33.9 Ma
Paleogene
Cyclocardia akagii
species		Animalia : Mollusca : Bivalvia : Carditida : Carditidae : Cyclocardia : Cyclocardia akagii37.2 - 33.9 Ma
Paleogene
Venericardia tokudai
species		Animalia : Mollusca : Bivalvia : Carditida : Carditidae : Venericardia : Venericardia tokudai37.2 - 33.9 Ma
Paleogene
Venericardia (Cyclocardia) yokoyamai
species		Animalia : Mollusca : Bivalvia : Carditida : Carditidae : Cyclocardia : Venericardia (Cyclocardia) yokoyamai37.2 - 33.9 Ma
Paleogene
Yoldia (Yoldia) saitoi
species		Animalia : Mollusca : Bivalvia : Nuculanida : Yoldiidae : Yoldia : Yoldia (Yoldia) saitoi37.2 - 33.9 Ma
Paleogene
Phocoenidae
family		Animalia : Chordata : Mammalia : Cetacea : Phocoenidae5.333 - 3.6 Ma
Neogene
Nipponothracia
genus		Animalia : Mollusca : Bivalvia : Thraciidae : Nipponothracia100.5 - 93.9 Ma
Late/Upper Cretaceous
Acila (Truncacila) hokkaidoensis
species		Animalia : Mollusca : Bivalvia : Nuculida : Nuculidae : Acila : Acila (Truncacila) hokkaidoensis83.6 - 72.1 Ma
Late/Upper Cretaceous
Provanna
genus		Animalia : Mollusca : Gastropoda : Provannidae : Provanna83.6 - 11.608 Ma
Phanerozoic
Plesiotexanites
genus		Animalia : Mollusca : Cephalopoda : Ammonoidea : Collignoniceratidae : Plesiotexanites86.3 - 72.1 Ma
Late/Upper Cretaceous
Baculites bailyi
species		Animalia : Mollusca : Cephalopoda : Ammonoidea : Baculitidae : Baculites : Baculites bailyi86.3 - 83.6 Ma
Late/Upper Cretaceous
Diplomoceras cylindraceum
species		Animalia : Mollusca : Cephalopoda : Ammonitida : Diplomoceratidae : Diplomoceras : Diplomoceras cylindraceum83.6 - 72.1 Ma
Late/Upper Cretaceous
Phylloceras (Neophylloceras) nera
species		Animalia : Mollusca : Cephalopoda : Phylloceratida : Phylloceratidae : Neophylloceras : Phylloceras (Neophylloceras) nera83.6 - 72.1 Ma
Late/Upper Cretaceous
Yezoites planus
species		Animalia : Mollusca : Cephalopoda : Ammonoidea : Scaphitidae : Yezoites : Yezoites planus93.9 - 89.3 Ma
Late/Upper Cretaceous
Hypophylloceras (Neophylloceras) ramosum
species		Animalia : Mollusca : Cephalopoda : Phylloceratida : Phylloceratidae : Neophylloceras : Hypophylloceras (Neophylloceras) ramosum83.6 - 72.1 Ma
Late/Upper Cretaceous
Otoscaphites (Hyposcaphites) perrini
species		Animalia : Mollusca : Cephalopoda : Ammonitida : Scaphitidae : Yezoites : Otoscaphites (Hyposcaphites) perrini93.9 - 89.8 Ma
Late/Upper Cretaceous
Otoscaphites (Hyposcaphites) matsumotoi
species		Animalia : Mollusca : Cephalopoda : Ammonitida : Scaphitidae : Yezoites : Otoscaphites (Hyposcaphites) matsumotoi89.8 - 86.3 Ma
Late/Upper Cretaceous
Myrtea ezoensis
species		Animalia : Mollusca : Bivalvia : Lucinida : Lucinidae : Myrtea : Myrtea ezoensis89.8 - 72.1 Ma
Late/Upper Cretaceous
Mesopuzosia densicostata
species		Animalia : Mollusca : Cephalopoda : Ammonoidea : Desmoceratidae : Mesopuzosia : Mesopuzosia densicostata83.6 - 72.1 Ma
Late/Upper Cretaceous
Anapachydiscus fascicostatus
species		Animalia : Mollusca : Cephalopoda : Ammonitida : Pachydiscidae : Menuites : Anapachydiscus fascicostatus83.6 - 72.1 Ma
Late/Upper Cretaceous
Menuites sanadai
species		Animalia : Mollusca : Cephalopoda : Ammonoidea : Pachydiscidae : Menuites : Menuites sanadai83.6 - 72.1 Ma
Late/Upper Cretaceous
Canadoceras multicostatum
species		Animalia : Mollusca : Cephalopoda : Ammonoidea : Pachydiscidae : Canadoceras : Canadoceras multicostatum83.6 - 72.1 Ma
Late/Upper Cretaceous
Metaplacenticeras subtilistriatum
species		Animalia : Mollusca : Cephalopoda : Ammonitida : Placenticeratidae : Metaplacenticeras : Metaplacenticeras subtilistriatum83.6 - 72.1 Ma
Late/Upper Cretaceous
Hoplitoplacenticeras fugen
species		Animalia : Mollusca : Cephalopoda : Ammonoidea : Placenticeratidae : Hoplitoplacenticeras : Hoplitoplacenticeras fugen83.6 - 72.1 Ma
Late/Upper Cretaceous
Hoplitoplacenticeras monju
species		Animalia : Mollusca : Cephalopoda : Ammonoidea : Placenticeratidae : Hoplitoplacenticeras : Hoplitoplacenticeras monju83.6 - 72.1 Ma
Late/Upper Cretaceous
Saghalinites teshioensis
species		Animalia : Mollusca : Cephalopoda : Ammonoidea : Tetragonitidae : Saghalinites : Saghalinites teshioensis83.6 - 72.1 Ma
Late/Upper Cretaceous
Polyptychoceras pseudogaultinum
species		Animalia : Mollusca : Cephalopoda : Ammonitida : Diplomoceratidae : Polyptychoceras : Polyptychoceras pseudogaultinum86.3 - 72.1 Ma
Late/Upper Cretaceous
Parasolenoceras tomitai
species		Animalia : Mollusca : Cephalopoda : Parasolenoceras : Parasolenoceras tomitai83.6 - 72.1 Ma
Late/Upper Cretaceous
Neopuzosia ishikawai
species		Animalia : Mollusca : Cephalopoda : Ammonoidea : Neopuzosia : Neopuzosia ishikawai85.8 - 83.5 Ma
Late/Upper Cretaceous
Gaudryceras tenuiliratum
species		Animalia : Mollusca : Cephalopoda : Ammonoidea : Gaudryceratidae : Gaudryceras : Gaudryceras tenuiliratum86.3 - 83.6 Ma
Late/Upper Cretaceous
Gaudryceras (Gaudryceras) denseplicatum
species		Animalia : Mollusca : Cephalopoda : Ammonitida : Gaudryceratidae : Gaudryceras : Gaudryceras (Gaudryceras) denseplicatum93.9 - 83.5 Ma
Late/Upper Cretaceous
Tetragonites glabrus
species		Animalia : Mollusca : Cephalopoda : Ammonitida : Tetragonitidae : Tetragonites : Tetragonites glabrus93.9 - 83.6 Ma
Late/Upper Cretaceous
Echinoidea
class		Animalia : Echinodermata : Echinoidea83.6 - 72.1 Ma
Late/Upper Cretaceous
Haborophocoena minutus
species		Animalia : Chordata : Mammalia : Cetacea : Phocoenidae : Haborophocoena : Haborophocoena minutus5.333 - 3.6 Ma
Neogene
Taniwhasaurus mikasaensis
species		Animalia : Chordata : Reptilia : Squamata : Mosasauridae : Taniwhasaurus : Taniwhasaurus mikasaensis85.8 - 70.6 Ma
Late/Upper Cretaceous
Notopocorystes (Notopocorystes) japonicus
species		Animalia : Arthropoda : Malacostraca : Decapoda : Palaeocorystidae : Notopocorystes : Notopocorystes (Notopocorystes) japonicus93.9 - 83.6 Ma
Late/Upper Cretaceous
Archaeopus ezoensis
species		Animalia : Arthropoda : Malacostraca : Decapoda : Ocypodidae : Archaeopus : Archaeopus ezoensis93.9 - 83.6 Ma
Late/Upper Cretaceous
Notopocorystes (Eucorystes) intermedius
species		Animalia : Arthropoda : Malacostraca : Decapoda : Palaeocorystidae : Notopocorystes : Notopocorystes (Eucorystes) intermedius93.9 - 83.6 Ma
Late/Upper Cretaceous
Metahomola brevis
species		Animalia : Arthropoda : Malacostraca : Decapoda : Homolidae : Metahomola : Metahomola brevis93.9 - 83.6 Ma
Late/Upper Cretaceous
Mesodermochelys
genus		Animalia : Chordata : Reptilia : Testudines : Dermochelyidae : Mesodermochelys83.6 - 72.1 Ma
Late/Upper Cretaceous
Archaeophocaena teshioensis
species		Animalia : Chordata : Mammalia : Cetacea : Phocoenidae : Archaeophocaena : Archaeophocaena teshioensis7.246 - 5.333 Ma
Miocene
Miophocaena nishinoi
species		Animalia : Chordata : Mammalia : Cetacea : Phocoenidae : Miophocaena : Miophocaena nishinoi7.246 - 5.333 Ma
Miocene
Haboroceras
genus		Haboroceras83.6 - 72.1 Ma
Late/Upper Cretaceous
Kummelonautilus yezoensis
species		Animalia : Mollusca : Cephalopoda : Nautilida : Nautilidae : Kummelonautilus : Kummelonautilus yezoensis89.8 - 86.3 Ma
Late/Upper Cretaceous
Kummelonautilus kamuy
species		Animalia : Mollusca : Cephalopoda : Nautilida : Nautilidae : Kummelonautilus : Kummelonautilus kamuy86.3 - 83.6 Ma
Late/Upper Cretaceous
Papyridea harrimani
species		Animalia : Mollusca : Bivalvia : Cardiida : Cardiidae : Papyridea : Papyridea harrimani37.2 - 33.9 Ma
Paleogene
Conchocele taylori
species		Animalia : Mollusca : Bivalvia : Lucinida : Thyasiridae : Conchocele : Conchocele taylori37.2 - 33.9 Ma
Paleogene
Damesites damesi
species		Animalia : Mollusca : Cephalopoda : Ammonitida : Desmoceratidae : Damesites : Damesites damesi86.3 - 83.6 Ma
Late/Upper Cretaceous
Polyptychoceras (Polyptychoceras)
subgenus		Animalia : Mollusca : Cephalopoda : Ammonitida : Diplomoceratidae : Polyptychoceras : Polyptychoceras (Polyptychoceras)86.3 - 72.1 Ma
Late/Upper Cretaceous
Inoceramus (Platyceramus)
subgenus		Animalia : Mollusca : Bivalvia : Myalinida : Inoceramidae : Inoceramus : Inoceramus (Platyceramus)85.8 - 72.1 Ma
Late/Upper Cretaceous
Eubostrychoceras valdelaxum
species		Animalia : Mollusca : Cephalopoda : Ammonoidea : Nostoceratidae : Eubostrychoceras : Eubostrychoceras valdelaxum83.5 - 70.6 Ma
Late/Upper Cretaceous
Inoceramus crippsi
species		Animalia : Mollusca : Bivalvia : Myalinida : Inoceramidae : Inoceramus : Inoceramus crippsi100.5 - 93.9 Ma
Late/Upper Cretaceous
Conchocele conradii
species		Animalia : Mollusca : Bivalvia : Lucinida : Thyasiridae : Conchocele : Conchocele conradii37.2 - 33.9 Ma
Paleogene
Conchocele kiritachiensis
species		Animalia : Mollusca : Bivalvia : Lucinida : Thyasiridae : Conchocele : Conchocele kiritachiensis37.2 - 33.9 Ma
Paleogene
Thyasira tanabei
species		Animalia : Mollusca : Bivalvia : Lucinida : Thyasiridae : Thyasira : Thyasira tanabei100.5 - 72.1 Ma
Late/Upper Cretaceous
Haborodelphis japonicus
species		Animalia : Chordata : Mammalia : Cetacea : Monodontidae : Haborodelphis : Haborodelphis japonicus5.333 - 3.6 Ma
Neogene
Paralia sulcata
species		Bacillariophyta : Paralia : Paralia sulcata5.333 - 3.6 Ma
Neogene
Actinoptychus senarius
species		Bacillariophyta : Actinoptychus : Actinoptychus senarius5.333 - 3.6 Ma
Neogene
Thalassiothrix longissima
species		Chromista : Ochrophyta : Bacillariophyceae : Thalassionematales : Thalassionemataceae : Thalassiothrix : Thalassiothrix longissima5.333 - 3.6 Ma
Neogene
Cocconeis
genus		Diatomophyceae : Pennales : Achnanthaceae : Cocconeis5.333 - 3.6 Ma
Neogene
Hubertschenckia ezoensis
species		Animalia : Mollusca : Bivalvia : Veneroidei : Vesicomyidae : Hubertschenckia : Hubertschenckia ezoensis37.2 - 33.9 Ma
Paleogene
Glyptocidaris (Eoglyptocidaris) arctina
species		Animalia : Echinodermata : Echinoidea : Calycina : Phymosomatidae : Glyptocidaris : Glyptocidaris (Eoglyptocidaris) arctina33.9 - 23.03 Ma
Cenozoic
Fossil LocalitiesClick to show 43 fossil localities
Japan
Japan

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Rumoi_Subprefecture
Wikidata ID:Q1151453
GeoNames ID:7419421

Localities in this Region

Japan
Japan

Other Regions, Features and Areas that Intersect

Okhotsk PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
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