Shioya Group Kanomatazawa Fm Molluscan Fauna Locality 4: Late Miocene, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Scaphopoda
- Dentaliida
- Dentaliidae
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Bivalvia
- Protobranchia
- Nuculanidae
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Bivalvia
- Lucinida
- Lucinidae
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Lucinoma annulata
(Reeve 1850)
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Bivalvia
- Cardiida
- Cardiidae
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Bivalvia
- Venerida
- Ungulinidae
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Bivalvia
- Venerida
- Veneridae
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| Dominant species at locality | ||||||||||
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Dosinia japonica
(Reeve 1850)
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Callista ? sp.
Poli 1791
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Bivalvia
- Arcida
- Arcidae
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Bivalvia
- Arcida
- Glycymerididae
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Glycymeris cisshuensis
Makiyama 1926
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Bivalvia
- Pectinida
- Pectinidae
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Pecten (Patinopecten) paraplebejus
Nomura and Hatai 1936
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Gastropoda
- Naticidae
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Sinum yabei
Otuka 1934
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Neverita kiritaniana
(Yokoyama 1931)
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Gastropoda
- Neogastropoda
- Olividae
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Olivella sp.
Swainson 1831
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Gastropoda
- Neogastropoda
- Nassariidae
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Gastropoda
- Neogastropoda
- Buccinidae
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? Siphonalia sp.
Adams 1863
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Gastropoda
- Neogastropoda
- Cancellariidae
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Gastropoda
- Calyptraeidae
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Crepidula sp.
Lamarck 1799
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Gastropoda
- Turritellidae
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| 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: | Lower |
| 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: | fine,medium lithified 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 4 | ||
| Database number: | 52222 | ||
| Authorizer: | A. Miller | Enterer: | K. Bulinski |
| Modifier: | K. Bulinski | Research group: | marine invertebrate |
| Created: | 2005-08-01 10:57:49 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2005-08-01 10:57:49 |
| 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] |