Tatezaki, Utatsu-cho, Motoyoshi-gun, Miyagi Prefecture: Spathian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Pectinida
- Hunanopectinidae
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| 7 specimens | ||||||||||
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Lingulata
- Lingulida
- Lingulidae
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Lingula sp.
Bruguiére 1797
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1 specimen | |||||||||
| (1 measurement) | ||||||||||
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= Lingularia sp.
Biernat and Emig 1993
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Clapham 2015 | |||||||||
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Lingulata
- Lingulida
- Discinidae
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Orbiculoidea sp.
d'Orbigny 1847
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2 specimens | |||||||||
| (1 measurement) | ||||||||||
| Ishizaki and Shiino 2024 | ||||||||||
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Orbiculoidea cf. sibirica
Moisseiev 1947
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2 specimens | |||||||||
| (1 measurement) | ||||||||||
| Ishizaki and Shiino 2024 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Japan |
| Coordinates: | 38.7° North, 141.5° East (view map) |
| Paleocoordinates: | 4.8° North, 138.8° East (Wright 2013) |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | outcrop |
Time
| Period: | Triassic | Epoch: | Early Triassic |
| Stage: | Olenekian | 10 m.y. bin: | Triassic 1 |
| Key time interval: | Spathian | Ammonoid zone: | Columbites parisianus |
| Age range of interval: | 248.6 - 247 m.y. ago |
Stratigraphy
| Formation: | Osawa | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Middle part of Osawa Fm | |||||
Lithology and environment
| Primary lithology: | lithified "siliciclastic" |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 113889 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2011-08-06 15:27:18 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2011-08-06 15:27:18 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 33620. | M. Murata. 1973. Triassic fossils from the Kitakami Massif, northeast Japan, Part 1, Pelecypods and Brachiopods of the Osawa and the Fukkoshi Formations. Science Reports of the Tohoku University. Second Series, Geology. Special Volume (Hatai Memorial Volume) 6:267-275 [M. Clapham/M. Clapham/M. Clapham] |
Secondary references:
| 27487 | M. E. Clapham. 2015. Personal Opinions. [M. Clapham/M. Clapham/M. Clapham] | |
| 89607 | Y. Ishizaki and Y. Shiino. 2024. A new genus of Triassic discinid brachiopod and re-evaluating the taxonomy of the group - evolutionary insights into autecological innovation of post-Palaeozoic discinids. Acta Palaeontologica Polonica 69:529-548 [M. Clapham/M. Clapham] |