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Shiramizu - Iwaki, Iwaki City, Fukushima Prefecture, Japan

GroupShiramizu
FormationIwaki
Age:33.9 - 28.1 Ma
Oligocene
IntervalPriabonian
Lithologysandstone/coal, gravel/coal
Number of Collections3
Number of Occurrences4

Recorded Sample Locations

LocationRegionStratigraphic Name
Iwasaki CollieryIwaki City, Fukushima Prefecture, JapanShiramizu - Iwaki
IwakiIwaki City, Fukushima Prefecture, JapanShiramizu - Iwaki
TagashiraIwaki City, Fukushima Prefecture, JapanShiramizu - Iwaki

Recorded Fossils

Accepted NameHierarchyAge
Pelagornithidae
family
5Animalia : Chordata : Aves : Pelagornithidae33.9 - 28.1 Ma
Oligocene
Bothriogenys hui
species
7Animalia : Chordata : Mammalia : Artiodactyla : Anthracotheriidae : Bothriogenys : Bothriogenys hui38 - 33.9 Ma
Paleogene
Notomeryx sp.
genus
6Animalia : Chordata : Mammalia : Artiodactyla : Hypertragulidae : Notomeryx38 - 33.9 Ma
Paleogene
Entelodon gobiensis
species
7Animalia : Chordata : Mammalia : Artiodactyla : Entelodontidae : Entelodon : Entelodon gobiensis38 - 33.9 Ma
Paleogene

References

Matsuoka H., Koda Y., et al (2003) Pseudodontorn fossils from Japan, with preliminary observations on the maxilla specimen from the Lower Oligocene Iwaki Formation, Fukushima, Japan, Bulletin of the Gunma Museum of Natural History 7, 47-59
Tsubamoto T., Koda Y., et al (2015) Paleogene mammals from the Iwaki Formation in Japan: Their implications for the geologic age and paleobiogeography of this formation, Journal of Asian Earth Sciences 108, 18-32
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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