Shioya Group Kanomatazawa Fm Molluscan Fauna Locality 15: Late Miocene, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Venerida - Veneridae
Dominant species at locality
Dosinia japonica (Reeve 1850)
Bivalvia - Cardiida - Cardiidae
Bivalvia - Arcida - Glycymerididae
Bivalvia - Ostreida - Ostreidae
see common names

Geography
Country:Japan
Coordinates: 36.7° North, 140.1° East (view map)
Paleocoordinates:36.3° North, 138.5° East (Wright 2013)
Basis of coordinate:based on political unit
Geographic resolution:local area
Time
Period: Neogene Epoch: Miocene
10 m.y. bin: Cenozoic 6
Key time interval: Late Miocene
Age range of interval: 11.63 - 5.333 m.y. ago
Stratigraphy
Geological group:Shioya Formation:Kanomatazawa Member:upper
Stratigraphic resolution:formation
Stratigraphy comments: middle unit of shioya group, divided into two members, lower and upper.
Lithology and environment
Primary lithology:coarse lithified conglomerate
Secondary lithology:medium,very coarse lithified conglomeratic sandstone
Includes fossils?Y
Includes fossils?Y
Lithology description: The Kanomatazawa formation is composed of conglomerate sandstone siltstone and acidic pyroclastic rocks. Lithology of the upper member is represented by mudstone in the western side whereas it is represented by coarse clastic sediments in the eastern side of the anticline.
Environment:marginal marine indet.
Glacial or sequence phase:regressive
Geology comments: This formation is subdivided into the lower and upper members. The two members differ from each other in their distribution as well as their lithological characteristics. The Lower member is distributed in the whole surveyed area showing similar lithology at every place. Distribution of the upper member is separated at the sekiya anticline.
Taphonomy
Modes of preservation:body
Collection methods and comments
Reason for describing collection:paleoecologic analysis
Metadata
Also known as:Locality 15
Database number:52238
Authorizer:A. Miller Enterer:K. Bulinski
Modifier:K. Bulinski Research group:marine invertebrate
Created:2005-08-01 11:32:08 Last modified:2025-02-22 15:12:02
Access level:the public Released:2005-08-01 11:32:07
Creative Commons license:CC0
Reference information

Primary reference:
13978. Y. Iwasaki. 1970. The Shiobara-type Molluscan Fauna: An ecological analysis of fossil molluscs. Journal of the faculty of science, University of Tokyo, Section 2 17(3):351-444 [A. Miller/K. Bulinski/K. Bulinski]