Niranohama, Utatsu-cho, Motoyoshi-gun, Miyagi Prefecture: Hettangian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Chondrichthyes
- Hybodontiformes
- Acrodontidae
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Asteracanthus sp.
Agassiz 1836
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Bivalvia
- Mytilida
- Mytilidae
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Volsella bakevelloides n. sp.
Hayami 1958
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Hayami 1958 | 3 specimens | ||||||||
| MM 2719 (holotype), right valve; MM 2720, left valve; MM 2721, left internal mould | ||||||||||
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Bivalvia
- Ostreida
- Pteriidae
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Pteria kitakamiensis n. sp.
Hayami 1958
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Hayami 1958 | 2 specimens | ||||||||
| MM 2737 (holotype), right external mould; MM 2738, left internal mould | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Japan |
| Coordinates: | 38.7° North, 141.5° East (view map) |
| Paleocoordinates: | 49.7° North, 152.8° East |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | small collection |
Time
| Period: | Jurassic | Epoch: | Early/Lower Jurassic |
| Stage: | Hettangian | 10 m.y. bin: | Jurassic 1 |
| Key time interval: | Hettangian | ||
| Age range of interval: | 201.40000 - 199.50000 m.y. ago |
Stratigraphy
| Geological group: | Shizukawa | Formation: | Niranohama |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | lithified not reported |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body,mold/impression |
| Size of fossils: | mesofossils,microfossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 119673 | ||
| Authorizer: | M. Clapham, A. Dunhill | Enterer: | M. Clapham, B. Allen |
| Modifier: | B. Allen | Research group: | vertebrate |
| Created: | 2011-10-31 03:00:15 | Last modified: | 2019-05-12 12:24:23 |
| Access level: | the public | Released: | 2011-10-31 03:00:15 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 38385. | M. Goto, N. Kuga, and K. Hachiya. 1991. On the hybodont elasmobranch teeth of three genera from the Mesozoic of Japan. Journal of the Geological Society of Japan 97(9):743-750 [M. Clapham/M. Clapham/M. Clapham] |
Secondary references:
| 42990 | M. Goto. 1994. Palaeozoic and early Mesozoic fish faunas of the Japanese Islands. The Island Arc 3(1994):247-254 [M. Clapham/P. Vazquez] | |
| 47699 | M. Goto, T. Uyeno, and Y. Yabumoto. 1996. Summary of Mesozoic elasmobranch remains from Japan. In G. Arratia & G. Viohl (ed.), Mesozoic Fishes - Systematics and Paleoecology 1:73-82 [M. Clapham/P. Vazquez] | |
| 68966 | I. Hayami. 1958. Liassic Volsella, Mytilus and some other dysodont species in Japan (Studies on the Liassic pelecypods in Japan, 6) . Transactions and Proceedings of the Palaeontological Society of Japan (New Series) 29:155-165 [A. Dunhill/B. Allen] |