Cape Iwaizaki (Unit 6): Wordian, Japan
collected by S. Niko
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Anthozoa
- Favositida
- Pachyporidae
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Yakunopora mabutii n. sp.
Niko 2015
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| see common names | |||||||
Geography
| Country: | Japan |
| Coordinates: | 38.8° North, 141.6° East (view map) |
| Paleocoordinates: | 6.8° North, 137.5° East (Wright 2013) |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | outcrop |
Time
| Period: | Permian | Epoch: | Guadalupian |
| Stage: | Wordian | 10 m.y. bin: | Permian 3 |
| Key time interval: | Wordian | ||
| Age range of interval: | 266.9 - 264.28 m.y. ago |
Stratigraphy
| Formation: | Iwaizaki | ||||
| Stratigraphy comments: Kawamura and Machiyama (1995) subdivided the limestone into eight lithologic units. The coral is derived from Unit 6 in their subdivision. This unit belongs to the Pseudofusulina paramotohashii fusulinacean zone of Wordian (= middle Guadalupian; middle Middle Permian) age (Morikawa, 1960) |
Lithology and environment
| Primary lithology: | shelly/skeletal,gray lithified packstone |
| Lithology description: Gray limestone (bioclastic packstone to grainstone) in coral biolithite | |
| Environment: | reef, buildup or bioherm |
| Geology comments: Coral and algal biolithites indicating reef facies (Shen and Kawamura, 2001) | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | peel or thin section,field collection |
| Reason for describing collection: | taxonomic analysis |
| Collectors: | S. Niko |
| Collection method comments: Repository: National Museum of Nature and Sciences, Tokyo | |
Metadata
| Database number: | 179818 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2016-07-02 09:51:00 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2016-07-02 09:51:00 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 59646. | S. Niko. 2015. Yakunopora mabutii, a new species of tabulate coral from the Permian Iwaizaki Limestone, Miyagi Prefecture, Japan. Bulletin of the National Museum of Nature and Science, Series C 41:25-28 [M. Clapham/M. Clapham] |