Do-no-kama: Langhian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Polycystinea - Nassellaria - Eucyrtidiidae
Osteichthyes - Cetacea
Osteichthyes - Carnivora - Desmatophocidae
1 specimen
unclassified
Chondrichthyes - Lamniformes - Otodontidae
Bivalvia - Pectinida - Pectinidae
Bivalvia - Protobranchia - Solemyidae
Solemya tokunagai Yokoyama 1925
see common names

Geography
Country:Japan State/province:Niigata
Coordinates: 38.0° North, 138.2° East (view map)
Paleocoordinates:37.8° North, 135.6° East (Wright 2013)
Basis of coordinate:stated in text
Time
Period: Neogene Epoch: Miocene
Stage: Langhian 10 m.y. bin: Cenozoic 5
Key time interval: Langhian
Age range of interval: 15.98 - 13.82 m.y. ago
Stratigraphy
Formation:Tsurushi
Stratigraphy comments: Originally said to be Serravallian; Radiolarian zones N10 to N13.
Langhian according to Tanaka et al 1995.
Lithology and environment
Primary lithology: not reported
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Database number:59181
Authorizer:M. Uhen Enterer:M. Uhen
Modifier:M. Uhen Research group:vertebrate
Created:2006-03-20 13:25:18 Last modified:2025-02-22 15:12:02
Access level:the public Released:2006-03-20 13:25:18
Creative Commons license:CC0
Reference information

Primary reference:
16919. L. G. Barnes and K. Hirota. 1995. Miocene pinnipeds of the otariid subfamily Allodesminae in the North Pacific Ocean: Systematics and relationships. The Island Arc 3:329-360 [M. Uhen/M. Uhen]

Secondary references:

76950 W. Tonomori, S. Kawano, K. Otsua and H. Hayashi. 2021. Report of an allodesmine humerus from Shimane, Japan: summary of Japanese allodesmines. Historical Biology [M. Uhen/M. Uhen]