Hiroshima Prefecture, Locality 1: Gzhelian - Asselian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Bactritida - Bactritidae
Bactrites sp. Sandberger 1843
1 specimen
Cephalopoda - Orthocerida - Orthoceratoidea
? Michelinoceras sp. Foerste 1932
3 specimens
6 specimens
one more questionable specimen
Cephalopoda - Dissidocerida - Orthoceratoidea
2 specimens
one more questionable specimen
Cephalopoda - Nautilida - Trigonoceratidae
2 specimens
see common names

Geography
Country:Japan
Coordinates: 34.9° North, 133.3° East (view map)
Paleocoordinates:
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period: Carboniferous - Permian Epoch: Pennsylvanian - Cisuralian
Stage: Gzhelian - Asselian 10 m.y. bin: Carboniferous 5 - Permian 1
Key time interval: Gzhelian - Asselian Foram zone:  Triticites contractus
Age range of interval: 303.7 - 293.52 m.y. ago
Stratigraphy
Geological group:Taishaku Limestone Formation:Uyamano
Stratigraphic resolution:group of beds
Stratigraphy comments: Triticites contractus Zone; Upper Gzhelian to Lower Asselian. PJW: Triticites contractus zone is Uyamano formation.
Lithology and environment
Primary lithology: lithified "limestone"
Lithology description: bioclastic limestone
Environment:reef, buildup or bioherm
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:all microfossils,some macrofossils
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Collection method comments: Specimens are housed in the Department of Earth and Planetary Sciences, Nagoya University (ESN).
Metadata
Also known as:Cephalopods from the Taishaku Limestone Group, Hiroshima Prefecture, Locality 1
Database number:49786
Authorizer:W. Kiessling Enterer:S. Nurnberg
Modifier:P. Wagner Research group:marine invertebrate
Created:2005-04-26 03:50:02 Last modified:2026-06-11 21:10:11
Access level:the public Released:2005-04-26 03:50:02
Creative Commons license:CC0
Reference information

Primary reference:
13367. S. Niko and T. Ozawa. 1997. Late Gzhelian (Carboniferous) to early Asselian (Permian) non-ammonoid cephalopods from the Taishaku Limestone Group, Southwest Japan. Paleontological Research 1(1):47-54 [W. Kiessling/S. Nurnberg/S. Nurnberg]