Kurosawa: Langhian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Osteichthyes - Perissodactyla - Desmostylidae
1 specimen
Osteichthyes - Perissodactyla - Paleoparadoxiidae
1 specimen
Kurosawa Specimen
1 specimen
see common names

Geography
Country:Japan State/province:Gunma
Coordinates: 36.3° North, 139.0° East (view map)
Paleocoordinates:36.1° North, 136.5° East (Wright 2013)
Basis of coordinate:estimated from map
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
Geological group:Tomioka Formation:Niwaya
Stratigraphic resolution:bed
Stratigraphy comments: 14 Ma. Age after Matsui & Kawabe (2015).
Lithology and environment
Primary lithology:tuffaceous sandstone
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Metadata
Also known as:Yoshii
Database number:75729
Authorizer:M. Uhen Enterer:M. Uhen
Modifier:M. Uhen Research group:vertebrate
Created:2007-10-25 11:35:17 Last modified:2025-02-22 15:12:02
Access level:the public Released:2007-10-25 11:35:17
Creative Commons license:CC0
Reference information

Primary reference:
25586. Y. Hasegawa, Y. Takakuwa, M. Nomura, T. Kurosawa, Y. Sudo and Y. Takayama. 2000. On occurrence of Desmostylian fossils from the Upper part of the Niwaya Formation, Tomioka Group (Middle Miocene), Yoshii town, Gunma Prefecture, Japan. Bulletin of the Gunma Museum of Natural History 4:57-66 [M. Uhen/M. Uhen]

Secondary references:

37937 Y. Hasegawa and T. Kimura. 2008. On the two large specimens of Paleoparadoxia (Middle Miocene) from Western Gunma Prefecture, Japan. Bulletin of the Gunma Museum of Natural History 12:15-33 [M. Uhen/M. Uhen]
55797 K. Matsui and S. Kawabe. 2015. The Oldest Record of Paleoparadoxia from the Northwest Pacific with an Implication on the Early Evolution of Paleoparadoxiinae (Mammalia: Desmostylia). Paleontological Research 19(3):251-265 [M. Uhen/M. Uhen]