Shibusawa Valley, Nanmoku, Gunma: Moscovian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Bryozoa indet. Ehrenberg 1831
Demospongiae - Hadromerida - Suberitidae
Chaetetes sp. Fischer von Waldheim 1829
Anthozoa - Stauriida - Petalaxidae
2 specimens
Anthozoa - Stauriida - Yatsengiidae
2 specimens
Anthozoa - Stauriida - Geyerophyllidae
7 specimens
Fusulinidae
Chlorophyceae - Dasycladales - Dasycladaceae
Dasycladaceae indet. Kutzing 1843
see common names

Geography
Country:Japan
Coordinates: 36.2° North, 138.7° East (view map)
Paleocoordinates:
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Carboniferous Epoch: Pennsylvanian
Stage: Moscovian 10 m.y. bin: Carboniferous 4
Key time interval: Moscovian
Age range of interval: 315.2 - 307 m.y. ago
Stratigraphy
Stratigraphic resolution:group of beds
Stratigraphy comments: a large exotic block embedded in the Jurassic Sumaizukuzawa Formation
Lithology and environment
Primary lithology: lithified "reef rocks"
Secondary lithology: lithified packstone
Lithology description: phylloid algal and coral boundstone and packstone
Environment:reef, buildup or bioherm
Taphonomy
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection methods:peel or thin section,field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:67702
Authorizer:W. Kiessling Enterer:U. Merkel
Research group:marine invertebrate
Created:2006-12-06 05:37:59 Last modified:2025-02-22 15:12:02
Access level:the public Released:2006-12-06 05:37:56
Creative Commons license:CC0
Reference information

Primary reference:
19342. H. Igo and Y. Kamikawa. 1998. Carboniferous rugose corals from the Nanmoku area, northwestern part of the Kanto Mountains, Gunma Prefecture, Japan. Science Reports of the Institute of Geoscience, University of Tsukuba, Section B 19:29-42 [W. Kiessling/U. Merkel]