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Shiranuka

FormationShiranuka
Age:3.60 - 2.59 Ma
Cenozoic
IntervalEarly Pliocene
Lithologysandstone/siltstone
Number of Collections6
Number of Occurrences21

Recorded Sample Locations

LocationRegionStratigraphic Name
Atsunai Fm - AN-13Kushiro Subprefecture, Hokkaidō Prefecture, JapanShiranuka
Shiranuka Fm - SNY-1Primorsky Krai, RussiaShiranuka
Shiranuka Formation - Kushiro coal fieldKushiro Subprefecture, Hokkaidō Prefecture, JapanShiranuka
ChokubetsuKushiro Subprefecture, Hokkaidō Prefecture, JapanShiranuka

Associated Units

Stratigraphic NameAgeLithologyOccurrence Records
Atsunai16.0 - 11.6 Ma
Miocene
siltstone, sandstone/siltstone32

Recorded Fossils

Accepted NameHierarchyAge
Odobenus sp.
genus
6Animalia : Chordata : Mammalia : Carnivora : Odobenidae : Odobenus3.6 - 2.588 Ma
Cenozoic
Clinocardium sp.
genus
6Animalia : Mollusca : Bivalvia : Cardiida : Cardiidae : Clinocardium5.333 - 3.6 Ma
Neogene
Macoma (Macoma) sp.
subgenus
6.3Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Macoma : Macoma (Macoma)5.333 - 3.6 Ma
Neogene
Macoma (Macoma) calcarea
species
7Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Macoma : Macoma (Macoma) calcarea5.333 - 3.6 Ma
Neogene
Nuculana sp.
genus
6Animalia : Mollusca : Bivalvia : Nuculanida : Nuculanidae : Nuculana5.333 - 3.6 Ma
Neogene
Nuculana (Nuculana) sp.
subgenus
6.3Animalia : Mollusca : Bivalvia : Nuculanida : Nuculanidae : Nuculana : Nuculana (Nuculana)5.333 - 3.6 Ma
Neogene
Portlandia sp.
genus
6Animalia : Mollusca : Bivalvia : Portlandia5.333 - 3.6 Ma
Neogene
Yoldia sp.
genus
6Animalia : Mollusca : Bivalvia : Nuculanida : Yoldiidae : Yoldia5.333 - 3.6 Ma
Neogene
Mya (Mya) sp.
subgenus
6.3Animalia : Mollusca : Bivalvia : Pholadida : Myidae : Mya : Mya (Mya)5.333 - 3.6 Ma
Neogene
Buccinidae
family
5Animalia : Mollusca : Gastropoda : Neogastropoda : Buccinidae5.333 - 3.6 Ma
Neogene
Makiyama sp.
genus
6Animalia : Porifera : Demospongea : Poecilosclerida : Makiyama5.333 - 3.6 Ma
Neogene

References

Sasa Y., Okazaki Y. (1967) Walrus fossils from the Pacific coast of Hokkaido, Commemorative Volume on 77th Anniversary of Prof. Ichiro Hayasaka, 181-184
Honda Y. (1988) Molluscan fossils from the Atsunai Group, Kushiro Coal Field, Eastern Hokkaido, Northern Japan, Sato Ho-on Kai Special Publication (Profesoor T. Kotaka Commemorartive Volume), 351-363
Honda Y. (1989) Paleogene molluscan faunas from the Kushiro Coal Field, Eastern Hokkaido, Tohoku University, Science Report, 2nd series 60 1, 1-137
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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