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Yatsuo, Toyama Prefecture, Japan

Group	Yatsuo
Formation(s)	Kurosedani
Age:	23.0 - 5.3 Ma Miocene
Interval	Miocene
Number of Collections	1
Number of Occurrences	1

Recorded Sample Locations

Location	Region	Stratigraphic Name
Nyuzen	Shimoniikawa district, Toyama Prefecture, Japan	Yatsuo
Dogawara	Toyama City, Toyama Prefecture, Japan	Yatsuo - Kurosedani
Murasugi	Toyama City, Toyama Prefecture, Japan	Yatsuo - Higashibessho - Joyama
lguridani	Toyama City, Toyama Prefecture, Japan	Yatsuo - Kurosedani

Associated Units

Stratigraphic Name	Age	Lithology	Occurrence Records
Tochizu	20.4 - 16.0 Ma Miocene	sandstone	1
Yatsuo - Higashibessho - Joyama	16.0 - 11.6 Ma Miocene	mudstone	7
Yatsuo - Kurosedani	16.0 - 11.6 Ma Miocene	mudstone, conglomerate	5

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Trachycarcinus huziokai species	7	Animalia : Arthropoda : Malacostraca : Decapoda : Atelecyclidae : Trachycarcinus : *Trachycarcinus huziokai*	15.97 - 11.608 Ma Miocene
Callianassa yatsuoensis species	7	Animalia : Arthropoda : Malacostraca : Decapoda : Callianassidae : Callianassa : *Callianassa yatsuoensis*	15.97 - 11.608 Ma Miocene
Cancer (Romaleon) sanbonsugii species	7	Animalia : Arthropoda : Malacostraca : Decapoda : Cancridae : Romaleon : *Cancer (Romaleon) sanbonsugii*	15.97 - 11.608 Ma Miocene
Platepistoma kaedei species	7	Animalia : Arthropoda : Malacostraca : Decapoda : Cancridae : Platepistoma : *Platepistoma kaedei*	15.97 - 11.608 Ma Miocene
Munida nishioi species	7	Animalia : Arthropoda : Malacostraca : Decapoda : Galatheidae : Munida : *Munida nishioi*	15.97 - 11.608 Ma Miocene
Carcinoplax antiqua species	7	Animalia : Arthropoda : Malacostraca : Decapoda : Goneplacidae : Carcinoplax : *Carcinoplax antiqua*	15.97 - 11.608 Ma Miocene
Tritodynamia globosa species	7	Animalia : Arthropoda : Malacostraca : Decapoda : Macrophthalmidae : Tritodynamia : *Tritodynamia globosa*	15.97 - 11.608 Ma Miocene
Miosesarma japonicum species	7	Animalia : Arthropoda : Malacostraca : Decapoda : Pseudothelphusidae : Miosesarma : *Miosesarma japonicum*	15.97 - 11.608 Ma Miocene
Cornwallius tabatai species	7	Animalia : Chordata : Mammalia : Paleoparadoxiidae : Paleoparadoxia : *Cornwallius tabatai*	23.03 - 5.333 Ma Miocene
Aturia cubaensis species	7	Animalia : Mollusca : Cephalopoda : Nautilida : Aturiidae : Aturia : *Aturia cubaensis*	20.44 - 15.97 Ma Miocene

References

Kobayashi T., Masatani K. (1955) On the occurrences of Aturia in provinces of Etchu and Iwami and their bearing on the palaeoflumenology in the Miocene of Japan, Transactions and Proceedings of the Paleontological Society of Japan, N.S. 17, 1-4

Kobayashi T. (1960) Some Miocene nautiloids from Shimane and Toyama prefectures, west Japan, Science Reports, Tohoku University, Sendai, Japan, 2nd Series (Geology), Special Volume 4, 117-124

Shikama T. (1966) Postcranial skeletons of Japanese Desmostylia, Palaeontological Society of Japan Special Papers 12, 1-202

Karasawa H. (1993) Cenozoic Decapod Crustacea from Southwest Japan, Bulletin of the Mizunami Fossil Museum 20, 1-92

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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