Taiki: Langhian - Serravallian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Osteichthyes - Cetacea
1 specimen
    = Taikicetus inouei n. gen., n. sp. Tanaka et al. 2018
Tanaka et al. 2018
Gastropoda - Provannidae
Provanna sp. Dall 1918
Amano and Little 2014
see common names

Geography
Country:Japan State/province:Hokkaido County:Hiroo
Coordinates: 42.5° North, 143.2° East (view map)
Paleocoordinates:42.5° North, 140.4° East (Wright 2013)
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period: Neogene Epoch: Miocene
Stage: Langhian - Serravallian 10 m.y. bin: Cenozoic 5
Key time interval: Langhian - Serravallian
Age range of interval: 15.98 - 11.63 m.y. ago
Age estimate: maximum 14.2 ± 1 Ma (fission track)
Stratigraphy
Geological group:Nupinai Formation:Hikatagawa
Stratigraphy comments: Fission track age of the underlying Green-Tuff Rekifune Formation was reported as 14.2 ±1 Ma (Koshimizu & Kim, 1986).
Lithology and environment
Primary lithology: sandstone
Includes fossils?Y
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (float)
Reason for describing collection:general faunal/floral analysis
Metadata
Database number:56949
Authorizer:M. Uhen Enterer:M. Uhen
Modifier:P. Wagner Research group:vertebrate
Created:2005-11-29 11:36:06 Last modified:2025-10-29 13:37:31
Access level:the public Released:2005-11-29 11:36:06
Creative Commons license:CC0
Reference information

Primary reference:

66473. F. Egashira and M. Kimura. 1998. A new fossil Mysticeti from the Taiki town, Hiroo County, Hokkaido. Nature and Science 111:7-22 [M. Uhen/M. Uhen]

Secondary references:

70446 K. Amano and C. T. S. Little. 2014. Miocene abyssochrysoid gastropod Provanna from Japanese seep and whale-fall sites. Acta Palaeontologica Polonica 59(1):163-172 [M. Uhen/M. Uhen]
15356 T. Kimura and Y. Hasegawa. 2004. An outline of the Miocene cetotheres of Japan. Bulletin of the Gunma Museum of Natural History 8:79-88 [M. Uhen/M. Uhen]
66232 Y. Tanaka, T. Ando, and H. Sawamura. 2018. A new species of Middle Miocene baleen whale from the Nupinai Group, Hikatagawa Formation of Hokkaido, Japan. PeerJ 6:e4934 [M. Uhen/M. Uhen]