Koguchi, Kuma 14, sample S 17: Oxfordian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Polycystinea - Nassellaria - Williriedellidae
Tricolocapsa conexa Matsuoka 1983
Polycystinea - Nassellaria - Eucyrtidiidae
Stichocapsa robusta Matsuoka 1984
Polycystinea - Nassellaria - Canoptidae
Polycystinea - Nassellaria - Parvicingulidae
see common names

Geography
Country:Japan
Coordinates: 32.3° North, 130.6° East (view map)
Paleocoordinates:48.5° North, 142.4° East (Wright 2013)
Geographic resolution:hand sample
Time
Period: Jurassic Epoch: Late Jurassic
Stage: Oxfordian 10 m.y. bin: Jurassic 5
Key time interval: Oxfordian
Age range of interval: 161.5 - 154.8 m.y. ago
Stratigraphy
Stratigraphic resolution:bed
Stratigraphy comments: Age based on radiolarians
Lithology and environment
Primary lithology: lithified cherty/siliceous mudstone
Lithology description: ribbon chert
Environment:basinal (siliciclastic) Tectonic setting:deep ocean basin
Taphonomy
Size of fossils:microfossils
Preservation of anatomical detail:medium
Collection methods and comments
Collection methods:chemical,hydroflouric,field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:77127
Authorizer:W. Kiessling Enterer:W. Kiessling
Research group:micropaleontology
Created:2007-12-21 06:37:06 Last modified:2025-02-22 15:12:02
Access level:authorizer only Released:2009-12-21 06:37:06
Creative Commons license:CC0
Reference information

Primary reference:
26108. T. Onoue and H. Sano. 2007. Triassic mid-oceanic sedimentation in Panthalassa Ocean: Sambosan accretionary complex, Japan. Island Arc 16(1):173-190 [W. Kiessling/W. Kiessling]