eastern side of Kuji Amber Museum: Turonian, Japan
collected 2005, 2008, 2010, 2014–2017
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
- Testudines
- Carettochelyidae
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Carettochelyidae indet.
Gill 1889
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Hirayama et al. 2016 | |||||||||
Reptilia
- Testudines
- Lindholmemydidae
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Lindholmemydidae indet.
Chkhikvadze 1970
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Hirayama et al. 2016 | |||||||||
Reptilia
- Testudines
- Nanhsiungchelyidae
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Nanhsiungchelyidae indet.
Yeh 1966
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Reptilia
- Testudines
- Trionychidae
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Trionychidae indet.
Gray 1825
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Hirayama et al. 2016 | |||||||||
Reptilia
- Testudines
- Adocidae
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Adocus sp.
Cope 1868
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8 specimens | |||||||||
= Adocus kokaku n. sp.
Hirayama et al. 2021
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Hirayama et al. 2021 | |||||||||
KAM 01, a nearly complete shell; KAM 16, anterior portion of carapace (Figure 4A); OSD 249, right ninth peripheral (Figure 4C); OSD 520, entoplastron (Figure 4D); OSD 1901, partial carapace and plastron; OSD 1929, right third costal (Figure 4B); OSD 2278, right costal; OSD 2332, nuchal. | ||||||||||
Reptilia
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Crocodylia indet.
(Owen 1842)
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= Neosuchia indet.
Clark 1988
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Hirayama et al. 2016 | |||||||||
"probably close to the genus Paralligator" | ||||||||||
Pterosauria indet.
(Kaup 1834)
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Hirayama et al. 2016 | 1 specimen | ||||||||
wing phalanx | ||||||||||
Theropoda indet.
(Marsh 1881)
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Hirayama et al. 2016 | |||||||||
Reptilia
- Ornithischia
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Ornithischia indet.
Seeley 1888
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Reptilia
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Sauropoda indet.
(Marsh 1878)
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Hirayama et al. 2016 | 23 specimens | ||||||||
teeth | ||||||||||
Choristodera indet.
(Cope 1876)
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Matsumoto et al. 2022 | 3 specimens | ||||||||
OSD 586, 844 and 1600 | ||||||||||
Chondrichthyes
- Rajiformes
- Sclerorhynchidae
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Sclerorhynchidae indet.
Capetta 1974
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Hirayama 2017 | |||||||||
Chondrichthyes
- Lamniformes
- Pseudoscapanorhynchidae
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Cretodus sp.
Sokolov 1965
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Hirayama et al. 2016 | |||||||||
Protolamna sp.
Cappetta 1980
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Hirayama et al. 2016 | |||||||||
Chondrichthyes
- Lamniformes
- Otodontidae
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Cretolamna sp.
Glikman 1958
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Hirayama et al. 2016 | |||||||||
Chondrichthyes
- Lamniformes
- Mitsukurinidae
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Scapanorhynchus sp.
Woodward 1889
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Hirayama et al. 2016 | |||||||||
see common names |
Geography
Country: | Japan | State/province: | Iwate |
Coordinates: | 40.2° North, 141.8° East (view map) | ||
Paleocoordinates: | 53.6° North, 132.4° East | ||
Basis of coordinate: | estimated from map | ||
Geographic resolution: | outcrop |
Time
Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
Stage: | Turonian | 10 m.y. bin: | Cretaceous 6 |
Key time interval: | Turonian | ||
Age range of interval: | 93.90000 - 89.80000 m.y. ago | ||
Age estimate: | 90.51 ± 0.54 Ma (U/Pb) |
Stratigraphy
Lithology and environment
Primary lithology: | sandy,carbonaceous siltstone |
Secondary lithology: | sandstone |
Includes fossils? | Y |
Includes fossils? | Y |
Lithology description: carbonaceous silt, greenish-white tuff, and greenish-gray medium-grained sandstones; "the 20 cm thick coaly mudstone layer and overlying 1 m thick marine sandstone" | |
Environment: | fluvial indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
Collection methods: | selective quarrying,field collection |
Reason for describing collection: | general faunal/floral analysis | Collection dates: | 2005, 2008, 2010, 2014–2017 |
Collection method comments: Repository: Kuji Amber Museum |
Metadata
Also known as: | Osawada River; Kuji City | ||
Database number: | 165694 | ||
Authorizer: | D. Nicholson, P. Mannion, M. Carrano | Enterer: | D. Nicholson, P. Mannion, M. Carrano |
Modifier: | M. Carrano | ||
Created: | 2015-01-26 06:38:46 | Last modified: | 2023-11-15 11:10:35 |
Access level: | the public | Released: | 2015-01-26 06:38:46 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
54154. | R. Hirayama, Y. Kobayashi, T. Sonoda and K. Sasaki. 2010. Preliminary report of terrestrial vertebrates from the Late Cretaceous Tamagawa Formation of the Kuji Group of Kuji City, Iwate Prefecture, northeastern Japan. Journal of Fossil Research 42(2):74-82 [D. Nicholson/D. Nicholson] |
Secondary references:
86471 | R. Hirayama. 2017. Fossil vertebrate assemblages from the Late Cretaceous Tamagawa Formation of Kuji City, Iwate Prefecture, eastern Japan. In D. Cheong, Y.-I. Lee, & D. Kim (eds.), Cretaceous Ecosystems and Their Responses to Paleoenvironmental Changes in Asia and the Western Pacific. Proceedings and Field Guidebook for the Fifth International Symposium of International Geoscience Programme IGCP Project 608 77-78 [M. Carrano/M. Carrano] | |
75272 | R. Hirayama, T. Sonoda, H. Uno, K. Horie, Y. Tsutsumi, S. Mitsuzuka, and T. Takisawa. 2021. Adocus Kohaku, A New Species of Aquatic Turtle (Testudines: Cryptodira: Adocidae) from the Late Cretaceous of Kuji, Iwate Prefecture, Northeast Japan, with Special References to the Geological Age of the Tamagawa Formation (Kuji Group). International Journal of Paleobiology & Paleontology 4(1):1-12 [E. Vlachos/E. Vlachos/P. Mannion] | |
86244 | R. Hirayama, T. Takisawa, K. Sasaki, T. Sonoda, M. Yoshida, A. Takekawa, S. Mitsuzuka, Y. Kobayashi, T. Tsuihiji, R. Matsumoto, M. Kurosu, Y. Takakuwa, S. Miyata and Y. Tsutsumi. 2016. Fossil vertebrates from the Late Cretaceous Tamagawa Formation (Turonian) of Kuji City, Iwate Prefecture, northeastern Japan. In O. S. Dzyuba, E. B. Pestchevitskaya, & B. N. Shurygin (eds.), Cretaceous Ecosystems and Their Responses to Paleoenvironmental Changes in Asia and the Western Pacific. Short papers for the Fourth International Symposium of International Geoscience Programme, IGCP Project 608 120 [M. Carrano/M. Carrano] | |
77744 | R. Matsumoto, R. Hirayama, S. Miyata, M. Yoshida, S. Mitsuzuka, T. Takisawa, and S. E. Evans. 2022. The first choristoderan record from the Upper Cretaceous of Asia, Tamagawa Formation, Kuji Group, Japan. Cretaceous Research 129:104999:1-7 [P. Mannion/P. Mannion/M. Carrano] |