Oshimizu, Oyama Town tracksite: Aptian, Japan
collected by T. Hamuro 1995-2002
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Theropoda
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Theropoda indet.
Marsh 1881
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Fujita et al. 2003 | |||||||||
| tracks and teeth | ||||||||||
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Reptilia
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Aves indet.
Linnaeus 1758
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Fujita et al. 2003 | |||||||||
| tracks | ||||||||||
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Ankylosauria indet.
Osborn 1923
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Fujita et al. 2003 | |||||||||
| tracks | ||||||||||
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Sauropoda indet.
Marsh 1878
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Fujita et al. 2003 | |||||||||
| tracks | ||||||||||
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Toyamasauripus masuiae n. gen., n. sp.
Matsukawa et al. 1997
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50 specimens | |||||||||
| tracks | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Japan | State/province: | Toyama | County: | Kaminiikawa-gun |
| Coordinates: | 36.5° North, 137.3° East (view map) | ||||
| Paleocoordinates: | 48.4° North, 137.7° East | ||||
| Basis of coordinate: | estimated from map | ||||
| Altitude: | 7088 feet | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
| Stage: | Aptian | 10 m.y. bin: | Cretaceous 3 |
| Key time interval: | Aptian | ||
| Age range of interval: | 121.40000 - 113.00000 m.y. ago |
Stratigraphy
| Geological group: | Tetori | Formation: | Atotsugawa | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: also listed as Inotani Mbr of the Nagatogawa Fm (Itoshiro Gp); Atotsugawa is in the Akaiwa Subgroup; fission-track age for formation of 113 +/- 6 Ma | |||||
Lithology and environment
| Primary lithology: | planar lamination,very fine,brown,gray muddy sandstone |
| Includes fossils? | Y |
| Lithology description: "very fine sandstone bed" | |
| Environment: | fluvial-deltaic indet. |
| Geology comments: "proximal mouth bar palaeoenvironment" | |
Taphonomy
| Modes of preservation: | body,mold/impression,trace |
| Degree of concentration: | concentrated |
| Size of fossils: | macrofossils,mesofossils |
| Spatial orientation: | life position |
| Preservation of anatomical detail: | medium |
| Abundance in sediment: | abundant |
| Associated major elements: | many |
| Disassociated major elements: | some |
| Temporal resolution: | snapshot |
| Spatial resolution: | autochthonous |
Collection methods and comments
| Collection methods: | selective quarrying,surface (in situ),mechanical,observed (not collected) | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | T. Hamuro | Collection dates: | 1995-2002 |
Metadata
| Also known as: | Ohyama, Ooyama-machi, Toyama, Ooshimizu | ||
| Database number: | 60557 | ||
| Authorizer: | M. Carrano | Enterer: | K. Maguire, M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2006-05-17 10:18:49 | Last modified: | 2021-11-15 19:32:52 |
| Access level: | the public | Released: | 2006-05-17 10:18:49 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 29368. | ETE | M. Matsukawa, T. Hamuro, T. Mizukami and S. Fujii. 1997. First trackway evidence of gregarious dinosaurs from the Lower Cretaceous Tetori Group of eastern Toyama prefecture, central Japan. Cretaceous Research 18:603-619 [M. Carrano/M. Carrano] |
Secondary references:
| 29362 | ETE | M. Fujita. 2008. Dinosaur tracks from the Tetori Group. International Dinosaur Symposium in Fukui 2008: Recent Progress of the Study on Asian Dinosaurs and Paleoenvironments. Fukui Prefectural Dinosaur Museum, Fukui 33-36 [M. Carrano/M. Carrano] |
| 23473 | ETE | M. J. Fujita, Y. Azuma, M. Goto, Y. Tomida, S. Hayashi and Y. Arakawa. 2003. First ankylosaur footpritns in Japan and their significance. Journal of Vertebrate Paleontology 23(3, suppl.):52A [M. Carrano/M. Carrano] |
| 55479 | Fukui Kenritsu Kyoryu Hakubutsukan. 2010. [Exhibit Guidebook of the Fukui Prefectural Dinosaur Museum]. 1-212 [M. Carrano/M. Carrano] | |
| 14092 | ETE | M. G. Lockley and M. Matsukawa. 1998. Lower Cretaceous vertebrate tracksites of East Asia. In S. G. Lucas, J. I. Kirkland, and J. W. Estep (eds.), Lower and Middle Cretaceous Terrestrial Ecosystems, New Mexico Museum of Natural History and Science Bulletin 14:135-142 [M. Carrano/M. Carrano/M. Carrano] |
| 78629 | M. Matsukawa, T. Hamuro, S. Fuiji and K. Koarai. 2002. Dinosaur tracks from the eastern part of the Tetori Group in Toyama Prefecture, central Japan. Bulletin of Tokyo Gakugei University, Section IV 54:171-177 [M. Carrano/M. Carrano] | |
| 16852 | ETE | M. Matsukawa, M. G. Lockley, and J. Li. 2006. Cretaceous terrestrial biotas of East Asia, with special reference to dinosaur-dominated ichnofaunas: towards a synthesis. Cretaceous Research 27(1):3-21 [M. Carrano/M. Carrano] |
| 29448 | ETE | M. Matsukawa, K. Shibata, R. Kukihara, K. Koarai, and M. G. Lockley. 2005. Review of Japanese dinosaur track localities: implications for ichnotaxonomy, paleogeography and stratigraphic correlation. Ichnos 12(3):201-222 [M. Carrano/M. Carrano] |