roadcut, Highway 45, Moshi: Late Aptian - Early Albian, Japan
collected 1978
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Bivalvia
- Ostreida
- Ostreidae
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| Hasegawa et al. 1991 | ||||||||||
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unclassified
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| Hasegawa et al. 1991 | ||||||||||
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Osteichthyes
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| 1 specimen | ||||||||||
| NSM PV17656, partial humerus | ||||||||||
| Matsukawa and Obata 1994 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Japan | State/province: | Iwate |
| Coordinates: | 39.8° North, 142.0° East (view map) | ||
| Paleocoordinates: | 47.7° North, 151.4° East (Wright 2013) | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| 10 m.y. bin: | Cretaceous 2-3 - Cretaceous 4 | ||
| Key time interval: | Late Aptian - Early Albian | ||
| Age range of interval: | 119.57 - 110.1 m.y. ago |
Stratigraphy
Lithology and environment
| Primary lithology: | pebbly,brown lithified sandy,calcareous conglomerate |
| Includes fossils? | Y |
| Lithology description: "boulder conglomerate...consists of fairly packed well-rounded gravels of andesitic rock. No stratification is apparent...The boulders are surrounded by round or well rounded cobbles and pebbles, and these are in turn surrounded by poorly sorted sand. The sand matrix is usually brown and badly weathered, in unweathered parts the sand is indurated." | |
| Environment: | coastal indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
| Preservation of anatomical detail: | poor |
| Associated major elements: | some |
| Disassociated major elements: | some |
| Fragmentation: | extreme |
| Spatial resolution: | allochthonous |
Collection methods and comments
| Collection methods: | selective quarrying,surface (in situ),mechanical,field collection,observed (not collected) |
| Reason for describing collection: | taxonomic analysis | Collection dates: | 1978 |
Metadata
| Also known as: | Iwaizumi | ||
| Database number: | 50308 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2005-05-12 10:46:50 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2005-05-12 10:46:50 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 55938. | Y. Hasegwa, M. Manabe, and Y. Azuma. 1986. Dinosaur fossils and tracks in Japan. In D. D. Gillette and M. G. Lockley (eds.), First International Symposium on Dinosaur Tracks and Traces, Abstracts with Program 15 [M. Carrano/M. Carrano] |
Secondary references:
| 54277 | Y. Azuma and Y. Tomida. 1997. Japanese dinosaurs. In P. J. Currie, K. Padian (eds.), Encyclopedia of Dinosaurs 375-379 [M. Carrano/M. Carrano/P. Wagner] | |
| 55479 | Fukui Kenritsu Kyoryu Hakubutsukan. 2010. [Exhibit Guidebook of the Fukui Prefectural Dinosaur Museum]. 1-212 [M. Carrano/M. Carrano] | |
| 13513 | ETE | Y. Hasegawa, M. Manabe, T. Hanai, T. Kase, and T. Oji. 1991. A diplodocoid dinosaur from the Early Cretaceous Miyako Group of Japan. Bulletin of the National Science Museum, Tokyo, Series C 17(1):1-9 [M. Carrano/M. Carrano/M. Carrano] |
| 54260 | M. Matsukawa and I. Obata. 1994. Dinosaurs and sedimentary environments in the Japanese Cretaceous: a contribution to dinosaur facies in Asia based on molluscan palaeontology and stratigraphy. Cretaceous Research 15(1):101-125 [M. Carrano/M. Carrano] |