Tanohata Area, Tanohata Formation, Honshu: Aptian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Cardiida
- Kalenteridae
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Bivalvia
- Cardiida
- Cardiidae
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Globocardium sphaeroideum
(Forbes 1845)
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Bivalvia
- Venerida
- Arcticidae
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Bivalvia
- Venerida
- Veneridae
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Bivalvia
- Thraciida
- Thraciidae
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Bivalvia
- Pholadomyida
- Pholadomyidae
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Bivalvia
- Pholadida
- Teredinidae
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Bivalvia
- Hippuritida
- Polyconitidae
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Bivalvia
- Trigoniida
- Megatrigoniidae
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Bivalvia
- Trigoniida
- Trigoniidae
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Nipponitrigonia kikuchiana
(Yokoyama 1891)
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Bivalvia
- Carditida
- Crassatellidae
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Bivalvia
- Carditida
- Astartidae
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| (?) | ||||||||||
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Bivalvia
- Arcida
- Glycymerididae
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Bivalvia
- Pectinida
- Pectinidae
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Bivalvia
- Pectinida
- Spondylidae
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Bivalvia
- Pectinida
- Neitheidae
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Bivalvia
- Limida
- Limidae
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Bivalvia
- Ostreida
- Bakevelliidae
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Bivalvia
- Ostreida
- Gryphaeidae
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Bivalvia
- Ostreida
- Ostreidae
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| see common names | ||||||||||
Geography
| Country: | Japan | State/province: | Iwate |
| Coordinates: | 40.0° North, 141.8° East (view map) | ||
| Paleocoordinates: | 49.0° North, 150.6° East (Wright 2013) | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | local area |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| Stage: | Aptian | 10 m.y. bin: | Cretaceous 3 |
| Key time interval: | Aptian | ||
| Age range of interval: | 121.4 - 113.2 m.y. ago |
Lithology and environment
| Primary lithology: | calcareous sandstone |
| 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: | 40554 | ||
| Authorizer: | M. Aberhan | Enterer: | S. Nurnberg |
| Modifier: | S. Nurnberg | Research group: | marine invertebrate |
| Created: | 2004-06-25 05:07:35 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2004-06-25 05:07:35 |
| Creative Commons license: | CC0 |
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] |