Guizhou, Zigui (Bed 2): Middle Jurassic, China
collected by L. Chen & Q. Shang 2005
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Actinopterygii
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Actinopterygii indet.
Cope 1887
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19 specimens | |||||||||
| IVPP V15149.1, V15149.34-.52 | ||||||||||
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Reptilia
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Crocodyliformes indet.
Hay 1930
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1 specimen | |||||||||
| IVPP V15150 | ||||||||||
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Chondrichthyes
- Hybodontiformes
- Polyacrodontidae
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Polyacrodus sp.
Jaekel 1889
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8 specimens | |||||||||
| IVPP V15141, V15141.1-.7 | ||||||||||
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Hybodus aff. parvidens
Woodward 1916
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1 specimen | |||||||||
| recombined as Polyacrodus parvidens | ||||||||||
| IVPP V15133 | ||||||||||
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Chondrichthyes
- Hybodontiformes
- Lonchidiidae
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cf. Parvodus sp.
Rees and Underwood 2002
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2 specimens | |||||||||
| IVPP V15138, V15139 | ||||||||||
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Chondrichthyes
- Hybodontiformes
- Hybodontidae
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Hybodus sp.
Agassiz 1834
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92 specimens | |||||||||
| IVPP V15134, V15134.1, V15135, V15135.1-.89 | ||||||||||
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Chondrichthyes
- Hybodontiformes
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Hubeiodus ziguiensis n. gen., n. sp.
Shang et al. 2008
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14 specimens | |||||||||
| IVPP V15142, V15144, V15145, V15148, V15148.1-.10 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | China | State/province: | Hubei | County: | Zigui |
| Coordinates: | 31.0° North, 110.6° East (view map) | ||||
| Paleocoordinates: | 33.1° North, 114.9° East | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Jurassic | Epoch: | Middle Jurassic |
| 10 m.y. bin: | Jurassic 3-5 | ||
| Key time interval: | Middle Jurassic | ||
| Age range of interval: | 174.70000 - 161.50000 m.y. ago |
Stratigraphy
Lithology and environment
| Primary lithology: | calcareous mudstone |
| Secondary lithology: | lenticular calcareous siltstone |
| Includes fossils? | Y |
| Lithology description: from a calcareous silstone lens, within the predominately calcareous silstone and calcareous mudstone of the top of the Lower Member | |
| Environment: | lacustrine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | mesofossils |
| Disassociated major elements: | some |
| Disassociated minor elements: | some |
| Fragmentation: | occasional |
Collection methods and comments
| Collection methods: | bulk,sieve,field collection | ||
| Rock censused: | 50 kg | ||
| Reason for describing collection: | general faunal/floral analysis | ||
| Museum repositories: | IVPP | ||
| Collectors: | L. Chen & Q. Shang | Collection dates: | 2005 |
Metadata
| Database number: | 85493 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano | Research group: | vertebrate |
| Created: | 2009-01-02 10:10:55 | Last modified: | 2009-01-02 12:10:55 |
| Access level: | the public | Released: | 2009-01-02 10:10:55 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 28885. | ETE | Q. Shang, G. Cuny, and L. Chen. 2008. Early Middle Jurassic vertebrate microremains from the Three Gorges area, southern China. Historical Biology 20(2):87-99 [M. Carrano/M. Carrano] |