S1, radiolarian sample Shimizu area: Early Bajocian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Polycystinea - Nassellaria - Eucyrtidiidae
Stichocapsa sp. Haeckel 1881
Polycystinea - Nassellaria - Parvicingulidae
Parvicingula sp. Pessagno 1977
Polycystinea - Nassellaria - Eucyrtidiellidae
Eucyrtidiellum sp. Baumgartner 1984
Polycystinea - Nassellaria - Archaeodictyomitridae
Polycystinea - Nassellaria - Unumidae
Protunuma sp. Ichikawa and Yao 1976
Unuma sp. Ichikawa and Yao 1976
Polycystinea - Nassellaria - Hsuidae
Hsuum sp. Pessagno 1977
Polycystinea - Nassellaria - Sethocapsidae
? Sethocapsa sp. Haeckel 1881
Polycystinea - Nassellaria - Williriedellidae
Tricolocapsa sp. Haeckel 1881
Tricolocapsa conexa Matsuoka 1983
Polycystinea - Spumellaria - Angulobracchiidae
Paronaella sp. Pessagno 1971
see common names

Geography
Country:Japan
Coordinates: 34.1° North, 135.4° East (view map)
Paleocoordinates:45.5° North, 152.5° East (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:hand sample
Time
Period: Jurassic Epoch: Middle Jurassic
Stage: Bajocian 10 m.y. bin: Jurassic 4
Key time interval: Early Bajocian
Age range of interval: 170.9 - 168.6 m.y. ago
Stratigraphy
Stratigraphic resolution:bed
Stratigraphy comments: Early to middle Bajocian
Lithology and environment
Primary lithology: lithified mudstone
Environment:basinal (siliciclastic)
Taphonomy
Size of fossils:macrofossils
Preservation of anatomical detail:medium
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:76518
Authorizer:W. Kiessling Enterer:W. Kiessling
Modifier:W. Kiessling Research group:micropaleontology
Created:2007-11-23 03:22:41 Last modified:2025-02-22 15:12:02
Access level:authorizer only Released:2009-11-23 03:22:41
Creative Commons license:CC0
Reference information

Primary reference:
25884. K. Kashiwagi and C. Kurimoto. 2003. Reexamination of radiolarian biochronology of the Shimizu Formation (Northern Chichibu Belt) in the Shimizu-Misato area, western Kii Peninsula, Southwest Japan. Bulletin of the Geological Survey of Japan 54(7/8):279-293 [W. Kiessling/W. Kiessling]