GJ-22, Gujiao section: Griesbachian, China
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Ammodiscidae
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Tolypammina sp.
Rhumbler 1895
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Dai et al. 2018 | ||||||
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Crinoidea
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Crinoidea indet.
Miller 1821
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Dai et al. 2018 | ||||||
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Echinoidea
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Echinoidea indet.
(Leske 1778)
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Dai et al. 2018 | ||||||
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Gastropoda
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Gastropoda indet.
Cuvier 1795
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Dai et al. 2018 | ||||||
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Gastropoda
- Naticopsidae
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? Naticopsis sp.
M'Coy 1844
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Dai et al. 2018 | ||||||
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Cephalopoda
- Ceratitida
- Ophiceratidae
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Ophiceras medium
Griesbach 1880
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Cephalopoda
- Nautilida
- Grypoceratidae
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Xiaohenautilus sinensis
Xu 1988
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Dai et al. 2018 | ||||||
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Ostracoda
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Ostracoda indet.
Latreille 1802
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Dai et al. 2018 | ||||||
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unclassified
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Arenicolites sp.
Salter 1857
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Dai et al. 2018 | ||||||
| see common names | |||||||
Geography
| Country: | China | State/province: | Guizhou |
| Coordinates: | 26.5° North, 106.9° East (view map) | ||
| Paleocoordinates: | 7.3° North, 96.0° East | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
Time
| Period: | Triassic | Epoch: | Early/Lower Triassic |
| 10 m.y. bin: | Triassic 1 | ||
| Key time interval: | Griesbachian | ||
| Age range of interval: | 251.90200 - 251.40000 m.y. ago |
Stratigraphy
| Formation: | Daye | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Ophiceras medium beds | |||||
Lithology and environment
| Primary lithology: | lithified marl |
| Environment: | carbonate indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Repository: Yifu Museum of China University of Geosciences, Wuhan | |
Metadata
| Database number: | 198881 | ||
| Authorizer: | M. Clapham, A. Dunhill | Enterer: | M. Clapham, B. Allen | Research group: | marine invertebrate |
| Created: | 2019-01-16 23:14:03 | Last modified: | 2019-01-16 23:14:03 |
| Access level: | the public | Released: | 2019-01-16 23:14:03 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 67748. | X. Dai, H. J. Song, A. Brayard and D. Ware. 2019. A new Griesbachian–Dienerian (Induan, Early Triassic) ammonoid fauna from Gujiao, South China. Journal of Paleontology 93:48-71 [M. Clapham/M. Clapham/X. Dai] |
Secondary references:
| 70290 | X. Dai, H. Song, P. B. Wignall, E. Jia, R. Bai, F. Wang, J. Chen and L. Tian. 2018. Rapid biotic rebound during the late Griesbachian indicates heterogeneous recovery patterns after the Permian-Triassic mass extinction. GSA Bulletin 130:2015-2030 [A. Dunhill/B. Allen] |