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Collection: Sakuradani Area, Kurisaka Formation, Shikoku Naka District, Tokushima Prefecture, Japan

Age	157.3 - 152.1 Ma (Jurassic)
Interval	Kimmeridgian
Lat/Long	33.75,134.333
Co-ordinates derived from	estimated from map
Location	Sakuradani Area
Mindat.org Region (for given coordinates)	Naka District, Tokushima Prefecture, Japan
Geographic Scale	local area
Formation	Kurisaka
Stratigraphic Scale	formation
Environment	marine indet.

Associated Collections

Collection	Lithology	Age
Sakuradani Area, Torinosu Group, Shikoku		145 - 139.8 Ma (Early/Lower Cretaceous)
Sakuradani Area, Torinosu Group, Shikoku	"shale"	163.5 - 145 Ma (Jurassic)
Sakuradani Area, Kochigatani Group, Shikoku	sandstone	228 - 208.5 Ma (Late/Upper Triassic)
Sakuradani Area, Kochigatani Group, Shikoku	sandstone	237 - 228 Ma (Late/Upper Triassic)
Sakuradani Area, Zohoin Group, Shikoku	mudstone	242 - 237 Ma (Middle Triassic)

Recorded Fossils

Accepted Name	Hierarchy	Preservation	Age
Parallelodon genus	Animalia : Mollusca : Bivalvia : Arcida : Parallelodontidae : *Parallelodon*	aragonite cast,mold/impression	163.5 - 145 Ma Jurassic
Grammatodon (Grammatodon) subgenus	Animalia : Mollusca : Bivalvia : Arcida : Parallelodontidae : Grammatodon : *Grammatodon (Grammatodon)*	aragonite cast,mold/impression	163.5 - 145 Ma Jurassic
Protocardia (Protocardia) subgenus	Animalia : Mollusca : Bivalvia : Cardiida : Cardiidae : Protocardia : *Protocardia (Protocardia)*	aragonite cast,mold/impression	163.5 - 145 Ma Jurassic
Astarte genus	Animalia : Mollusca : Bivalvia : Carditida : Astartidae : *Astarte*	aragonite cast,mold/impression	237 - 228 Ma Late/Upper Triassic
Astarte (Astarte) subgenus	Animalia : Mollusca : Bivalvia : Carditida : Astartidae : Astarte : *Astarte (Astarte)*	aragonite cast,mold/impression	163.5 - 145 Ma Jurassic
Astarte genus	Animalia : Mollusca : Bivalvia : Carditida : Astartidae : *Astarte*	aragonite cast,mold/impression	163.5 - 145 Ma Jurassic
Opis (Trigonopis) subgenus	Animalia : Mollusca : Bivalvia : Carditida : Astartidae : Opis : *Opis (Trigonopis)*	aragonite cast,mold/impression	163.5 - 145 Ma Jurassic
Astarte (Astarte) subgenus	Animalia : Mollusca : Bivalvia : Carditida : Astartidae : Astarte : *Astarte (Astarte)*	aragonite cast,mold/impression	145 - 139.8 Ma Early/Lower Cretaceous
Cardinia genus	Animalia : Mollusca : Bivalvia : Carditida : Cardiniidae : *Cardinia*	aragonite cast,mold/impression	237 - 228 Ma Late/Upper Triassic
Falcimytilus nasai species	Animalia : Mollusca : Bivalvia : Mytilida : Mytilidae : Falcimytilus : *Falcimytilus nasai*	aragonite, low Mg calcite cast,mold/impression	237 - 228 Ma Late/Upper Triassic
Palaeoneilo genus	Animalia : Mollusca : Bivalvia : Nuculanida : Malletiidae : *Palaeoneilo*	aragonite cast,mold/impression	237 - 228 Ma Late/Upper Triassic
Nuculana (Praesaccella) subgenus	Animalia : Mollusca : Bivalvia : Nuculanida : Nuculanidae : Nuculana : *Nuculana (Praesaccella)*	aragonite cast,mold/impression	163.5 - 145 Ma Jurassic
Trigonucula sakawana species	Animalia : Mollusca : Bivalvia : Nuculida : Nuculidae : Trigonucula : *Trigonucula sakawana*	aragonite cast,mold/impression	237 - 228 Ma Late/Upper Triassic
Palaeonucula genus	Animalia : Mollusca : Bivalvia : Nuculida : Nuculidae : *Palaeonucula*	aragonite cast,mold/impression	237 - 228 Ma Late/Upper Triassic
Rastellum (Arctostrea) subgenus	Animalia : Mollusca : Bivalvia : Ostreida : Arctostreidae : Rastellum : *Rastellum (Arctostrea)*	low Mg calcite cast,mold/impression	163.5 - 145 Ma Jurassic
Gervillia (Gervillia) subgenus	Animalia : Mollusca : Bivalvia : Ostreida : Bakevelliidae : Gervillia : *Gervillia (Gervillia)*	aragonite, low Mg calcite cast,mold/impression	163.5 - 145 Ma Jurassic
Liostrea genus	Animalia : Mollusca : Bivalvia : Ostreida : Gryphaeidae : *Liostrea*	low Mg calcite cast,mold/impression	163.5 - 145 Ma Jurassic
Nanogyra genus	Animalia : Mollusca : Bivalvia : Ostreida : Gryphaeidae : *Nanogyra*	low Mg calcite cast,mold/impression	163.5 - 145 Ma Jurassic
Daonella (Arzelella) indica species	Animalia : Mollusca : Bivalvia : Ostreida : Halobiidae : Daonella : *Daonella (Arzelella) indica*	aragonite, low Mg calcite cast,mold/impression	242 - 237 Ma Middle Triassic
Daonella genus	Animalia : Mollusca : Bivalvia : Ostreida : Daonellidae : *Daonella*	aragonite, low Mg calcite cast,mold/impression	242 - 237 Ma Middle Triassic
Halobia kawadai species	Animalia : Mollusca : Bivalvia : Ostreida : Halobiidae : Halobia : *Halobia kawadai*	aragonite, low Mg calcite cast,mold/impression	237 - 228 Ma Late/Upper Triassic
Halobia genus	Animalia : Mollusca : Bivalvia : Ostreida : Halobiidae : *Halobia*	aragonite, low Mg calcite cast,mold/impression	237 - 228 Ma Late/Upper Triassic
Actinostreon marshi species	Animalia : Mollusca : Bivalvia : Ostreida : Palaeolophidae : Actinostreon : *Actinostreon marshi*	low Mg calcite cast,mold/impression	163.5 - 145 Ma Jurassic
Plectomya genus	Animalia : Mollusca : Bivalvia : Laternulidae : *Plectomya*	aragonite cast,mold/impression	163.5 - 145 Ma Jurassic
Entolium genus	Animalia : Mollusca : Bivalvia : Pectinida : Entoliidae : *Entolium*	low Mg calcite, aragonite cast,mold/impression	163.5 - 145 Ma Jurassic
Somapecten genus	Animalia : Mollusca : Bivalvia : Pectinida : Entoliidae : *Somapecten*	low Mg calcite, aragonite cast,mold/impression	163.5 - 145 Ma Jurassic
Entolium genus	Animalia : Mollusca : Bivalvia : Pectinida : Entoliidae : *Entolium*	low Mg calcite, aragonite cast,mold/impression	145 - 139.8 Ma Early/Lower Cretaceous
Pseudolimea naumanni species	Animalia : Mollusca : Bivalvia : Pectinida : Limidae : Pseudolimea : *Pseudolimea naumanni*	aragonite, low Mg calcite cast,mold/impression	237 - 228 Ma Late/Upper Triassic
Ctenoides genus	Animalia : Mollusca : Bivalvia : Limida : Limidae : *Ctenoides*	aragonite, low Mg calcite cast,mold/impression	163.5 - 145 Ma Jurassic
Otapiria dubia species	Animalia : Mollusca : Bivalvia : Pectinida : Monotidae : Otapiria : *Otapiria dubia*	low Mg calcite cast,mold/impression	237 - 228 Ma Late/Upper Triassic
Monotis (Entomonotis) ochotica species	Animalia : Mollusca : Bivalvia : Pectinida : Monotidae : Monotis : *Monotis (Entomonotis) ochotica*	low Mg calcite cast,mold/impression	228 - 208.5 Ma Late/Upper Triassic
Monotis (Eomonotis) jakutica species	Animalia : Mollusca : Bivalvia : Pectinida : Monotidae : Monotis : *Monotis (Eomonotis) jakutica*	low Mg calcite cast,mold/impression	228 - 208.5 Ma Late/Upper Triassic
Monotis (Entomonotis) zabaikalica species	Animalia : Mollusca : Bivalvia : Pectinida : Monotidae : Monotis : *Monotis (Entomonotis) zabaikalica*	low Mg calcite cast,mold/impression	228 - 208.5 Ma Late/Upper Triassic
Oxytoma (Oxytoma) subgenus	Animalia : Mollusca : Bivalvia : Pectinida : Oxytomidae : Oxytoma : *Oxytoma (Oxytoma)*	low Mg calcite cast,mold/impression	237 - 228 Ma Late/Upper Triassic
Tosapecten suzukii species	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Tosapecten : *Tosapecten suzukii*	low Mg calcite, aragonite cast,mold/impression	237 - 228 Ma Late/Upper Triassic
Chlamys mojsisovicsi species	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Chlamys : *Chlamys mojsisovicsi*	low Mg calcite, aragonite cast,mold/impression	237 - 228 Ma Late/Upper Triassic
Aequipecten genus	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : *Aequipecten*	low Mg calcite, aragonite cast,mold/impression	163.5 - 145 Ma Jurassic
Camptonectes genus	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : *Camptonectes*	low Mg calcite, aragonite cast,mold/impression	163.5 - 145 Ma Jurassic
Eopecten genus	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : *Eopecten*	low Mg calcite, aragonite cast,mold/impression	157.3 - 152.1 Ma Jurassic
Plicatula genus	Animalia : Mollusca : Bivalvia : Pectinida : Plicatulidae : *Plicatula*	low Mg calcite, aragonite cast,mold/impression	163.5 - 145 Ma Jurassic
Parvamussium genus	Animalia : Mollusca : Bivalvia : Pectinida : Propeamussiidae : *Parvamussium*	low Mg calcite, aragonite cast,mold/impression	163.5 - 145 Ma Jurassic
Varicorbula globosa species	Animalia : Mollusca : Bivalvia : Pholadida : Corbulidae : Corbula : *Varicorbula globosa*	aragonite cast,mold/impression	163.5 - 145 Ma Jurassic
Myophorella (Haidaia) subgenus	Animalia : Mollusca : Bivalvia : Trigoniida : Myophorellidae : Myophorella : *Myophorella (Haidaia)*	aragonite cast,mold/impression	163.5 - 145 Ma Jurassic
Myophorella genus	Animalia : Mollusca : Bivalvia : Trigoniida : Myophorellidae : *Myophorella*	aragonite cast,mold/impression	157.3 - 152.1 Ma Jurassic
Neoschizodus genus	Animalia : Mollusca : Bivalvia : Trigoniida : Myophoriidae : *Neoschizodus*	aragonite cast,mold/impression	237 - 228 Ma Late/Upper Triassic
Neoschizodus (Okunominetania) subgenus	Animalia : Mollusca : Bivalvia : Trigoniida : Myophoriidae : Neoschizodus : *Neoschizodus (Okunominetania)*	aragonite cast,mold/impression	237 - 228 Ma Late/Upper Triassic
Minetrigonia genus	Animalia : Mollusca : Bivalvia : Trigoniida : Trigoniidae : *Minetrigonia*	aragonite cast,mold/impression	237 - 228 Ma Late/Upper Triassic
Linotrigonia genus	Animalia : Mollusca : Bivalvia : Trigoniida : Pterotrigoniidae : *Linotrigonia*	aragonite cast,mold/impression	163.5 - 145 Ma Jurassic
Trigonodus genus	Animalia : Mollusca : Bivalvia : Trigoniida : Trigonodidae : *Trigonodus*	aragonite cast,mold/impression	237 - 228 Ma Late/Upper Triassic

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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