Soma Area, Yamagami Formation, Honshu: Callovian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
- Pectinida
- Limidae
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Plagiostoma aff. subcardiiforme
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Bivalvia
- Cardiida
- Arcticidae
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Pronoella sugayensis
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Bivalvia
- Lucinida
- Lucinidae
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Mesolinga masatanii
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Fimbria somensis
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Bivalvia
- Trigoniida
- Myophorellidae
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Myophorella (Promyophorella) sugayensis
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Scaphotrigonia somensis
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spelled with current rank as Myophorella (Scaphotrigonia) | ||||||||||
Bivalvia
- Trigoniida
- Trigoniidae
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Ibotrigonia masatanii
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Nipponitrigonia sagawai
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subsp. sagawai | ||||||||||
Latitrigonia unicarinata
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Latitrigonia unituberculata
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see common names |
Geography
Country: | Japan | State/province: | Fukushima |
Coordinates: | 37.8° North, 140.9° East (view map) | ||
Paleocoordinates: | 45.8° North, 145.6° East | ||
Basis of coordinate: | estimated from map | ||
Geographic resolution: | local area |
Time
Period: | Jurassic | Epoch: | Middle Jurassic |
Stage: | Callovian | 10 m.y. bin: | Jurassic 5 |
Key time interval: | Callovian | ||
Age range of interval: | 166.10000 - 163.50000 m.y. ago |
Lithology and environment
Primary lithology: | sandstone |
Secondary lithology: | "shale" |
Environment: | marine indet. |
Taphonomy
Modes of preservation: | cast,mold/impression |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | survey of museum collection |
Reason for describing collection: | taxonomic analysis |
Metadata
Database number: | 40545 | ||
Authorizer: | M. Aberhan | Enterer: | S. Nurnberg |
Modifier: | S. Nurnberg | Research group: | marine invertebrate |
Created: | 2004-06-25 01:41:11 | Last modified: | 2004-06-29 15:22:23 |
Access level: | the public | Released: | 2004-06-25 01:41:11 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
10664. | I. Hayami. 1975. A systematic survey of the Mesozoic Bivalvia from Japan. The University Museum, The University of Tokyo, Bulletin (10) [M. Aberhan/S. Nurnberg/S. Nurnberg] |