Third formation (W3, KM-1): Neocomian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Gonrynchiformes indet.
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KMNH VP 100,233 | ||||||||||
Gastropoda
- Thiaridae
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Brotiopsis kobayashii
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Gastropoda
- Viviparidae
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Viviparus onogoensis
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Bivalvia
- Trigoniida
- Nakamuranaiadidae
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Nakamuranaia cf. chingshanensis
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Actinopteri
- Osteoglossiformes
- Wakinoichthiidae
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Wakinoichthys robustus n. sp.
Yabumoto 1994
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holotype: KMNH VP 100,188; paratypes: 189-191 | ||||||||||
Wakinoichthys aokii
Yabumoto 1994
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holotype: KMNH VP 100,140; paratype: 184-187 | ||||||||||
Actinopteri
- Leptolepidiformes
- Leptolepididae
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Paraleptolepis kikuchii n. gen., n. sp.
Yabumoto 1994
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holotype: KMNH VP 100,222; paratypes: 223-226 | ||||||||||
Paraleptolepis elegans
Yabumoto 1994
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holotype: KMNH VP 100,227; paratypes: 228-232 | ||||||||||
Actinopteri
- Ichthyodectiformes
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Chuhsiungichthys sp.
Yabumoto 1994
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KMNH VP 100,152-154 | ||||||||||
see common names |
Geography
Country: | Japan | State/province: | Fukuoka |
Coordinates: | 33.8° North, 130.9° East (view map) | ||
Paleocoordinates: | 41.1° North, 132.6° East | ||
Basis of coordinate: | stated in text | ||
Geographic resolution: | outcrop |
Time
Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
Key time interval: | Neocomian | ||
Age range of interval: | 145.00000 - 130.00000 m.y. ago |
Stratigraphy
Lithology and environment
Primary lithology: | red or brown,white lithified slate |
Secondary lithology: | lithified "shale" |
Includes fossils? | Y |
Includes fossils? | Y |
Lithology description: It is composed mainly of sandstone, with alternating sandstone and shale, siliceous shale and tuff and others. Fish fossils are found in the well laminated yellowish white and reddish-brown slate | |
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | adpression |
Size of fossils: | macrofossils |
Collection methods and comments
Collection excludes: | some genera |
Collection methods: | chemical,peel or thin section |
Reason for describing collection: | taxonomic analysis |
Collection method comments: All fossil specimens used in the present study are deposited in the Kitakyushu Museum and Institute of Natural History (NMNH)
Some specimens were immersed in a bath of 20% HCl and 80% water in 24-48 hours to etch their bones. Latex peels were made from the etched fossils for observation. The outline of large specimens were drawn by tracing the enlarged positive films and detailed drawings were made with a binocular microscope. |
Metadata
Database number: | 145244 | ||
Authorizer: | M. Bell | Enterer: | M. Bell |
Modifier: | M. Bell | ||
Created: | 2013-05-30 20:37:12 | Last modified: | 2013-05-30 07:34:49 |
Access level: | the public | Released: | 2013-05-30 20:37:12 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
46901. | Y. Yabumoto. 1994. Early Cretaceous freshwater fish fauna in Kyushu, Japan. Bulletin of the Kitakyushu Museum of Natural History 13:107-254 [M. Bell/M. Bell] |