List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Orthocerida
- Orthoceratoidea
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Brachycycloceras sp.
Miller et al. 1933
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| see common names | |||||||
Geography
| Country: | Japan |
| Coordinates: | 39.0° North, 141.5° East (view map) |
| Paleocoordinates: | 8.7° North, 138.3° East (Wright 2013) |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | small collection |
Stratigraphy
| Formation: | Ochiai | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Judging from the lithofacies of the matrix, the geology around this locality, and the associated ammonoid fauna, it was probably derived from the middle - upper portion (Roadian-Wordian; Middle Permian) of the lower member of the Ochiai Formation. | |||||
Lithology and environment
| Primary lithology: | lithified "shale" |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | surface (float),field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 116007 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2011-09-05 02:29:39 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2011-09-05 02:29:39 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 33634. | S. Niko and M. Ehiro. 2002. Permian orthoconic cephalopods of the Ochiai Formation in the southern Kitakami Mountains, northeast Japan. Paleontological Research 6:385-389 [M. Clapham/M. Clapham] |