Goshoura Island (Loc.1415): Albian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
- Carditida
- Crassatellidae
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Anthonya amakusensis
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Bivalvia
- Pholadomyida
- Pholadomyidae
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Pholadomya japonica
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Bivalvia
- Pandorida
- Laternulidae
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Periplomya japonica
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Cercomya sp.
Agassiz 1843
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Bivalvia
- Cardiida
- Veneridae
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Goshoraia crenulata
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Bivalvia
- Trigoniida
- Megatrigoniidae
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Pterotrigonia pustulosa
(Nagao 1930)
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Bivalvia
- Ostreida
- Ostreidae
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Rastellum sp.
Faujas-St.-Fond 1799
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Bivalvia
- Arcida
- Cucullaeidae
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Cucullaea amaxensis
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Bivalvia
- Arcida
- Arcidae
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Arca tashiroi
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see common names |
Geography
Country: | Japan |
Coordinates: | 32.3° North, 130.3° East (view map) |
Paleocoordinates: | 44.6° North, 127.0° East |
Basis of coordinate: | estimated from map |
Geographic resolution: | outcrop |
Time
Period: | Cretaceous | Epoch: | Early Cretaceous |
Stage: | Albian | 10 m.y. bin: | Cretaceous 4 |
Key time interval: | Albian | ||
Age range of interval: | 113 - 100.5 m.y. ago |
Stratigraphy
Formation: | Eboshi | Member: | Arakuchizaki |
Stratigraphic resolution: | bed |
Lithology and environment
Primary lithology: | grading lithified sandstone |
Secondary lithology: | gray,red lithified mudstone |
Lithology description: The upper part consists of the alternated beds of sandstone and dark gray to black mudstone. The mudstone color gradually changes from dark gray through red and light green to dark gray mudstones toward the top of this member. The red and light green mudstones are massive. The dark gray mud- stone of the upper part contains lenticular to flaser beds with bidirectional current ripple laminations, but these laminations are generally obscured by intense bioturbations. | |
Environment: | peritidal |
Geology comments: The Arakuchizaki Member (newly defined) con-
sists of tidal flat, channel and tidal sand bar deposits (Komatsu, 1999a). |
Taphonomy
Modes of preservation: | body,shellbed |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | field collection |
Reason for describing collection: | paleoecologic analysis |
Metadata
Database number: | 122274 | ||
Authorizer: | M. Aberhan | Enterer: | D. Wellmanns |
Modifier: | D. Wellmanns | Research group: | marine invertebrate |
Created: | 2011-12-20 22:28:56 | Last modified: | 2012-01-17 06:27:33 |
Access level: | authorizer only | Released: | 2016-12-20 22:28:56 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
38682. | T. Komatsu and H. Maeda. 2005. Stratigraphy and fossil bivalve assemblages of the mid-Cretaceous Goshoura Group, southwest Japan. Paleontological Research 9(2):119-142 [M. Aberhan/D. Wellmanns] |