Hongjingshao Formation, bed 24m: Early/Lower Cambrian, China
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Jugatacaris agilis
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Jugatacaris indet.
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Bradoriida
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Combinivalvula sp.
Hou 1987
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Fuxianhuiida
- Fuxianhuiidae
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Fuxianhuia xiaoshibaensis
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Trilobita
- Redlichiida
- Yunnanocephalidae
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Yunnanocephalus yunnanensis
(Mansuy 1912)
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Trilobita
- Redlichiida
- Metadoxididae
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Fuminaspis yunnanaspis
Zhang et al. 1980
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Hongshiyanaspis yiliangensis
Zhang et al. 1980
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Trilobita
- Redlichiida
- Redlichiidae
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Kuanyangia (Sapushania) granulosa
Zhang 1966
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unclassified
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Pisinnocaris subconigera
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Odaraiida
- Pectocariidae
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Pectocaris indet.
Hou 1999
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unclassified
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Hallucigenia sp.
Conway Morris 1977
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Sicyophorus sp.
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Paraselkirkia sp.
Luo and Hu 1999
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Geography
| Country: | China | State/province: | Yunnan | County: | Kunming |
| Coordinates: | 24.8° North, 102.8° East (view map) | ||||
| Paleocoordinates: | 36.6° North, 162.5° East | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Cambrian | ||
| 10 m.y. bin: | Cambrian 1-3 | ||
| Key time interval: | Early/Lower Cambrian | Trilobite zone: | Yunnanocephalus |
| Age range of interval: | 538.80000 - 509.00000 m.y. ago | ||
| Age estimate: | 517 Ma (graphic correlation)521 to 514 Ma (graphic correlation) |
Stratigraphy
| Formation: | Hongjingshao | ||||
| Local section: | Xiazhuang | Local bed: | 24 m | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: Cambrian Stage 3 | |||||
Lithology and environment
| Primary lithology: | lithified silty,sandy sandstone |
| Secondary lithology: | lithified muddy,sandy mudstone |
| Includes fossils? | Y |
| Lithology description: Hongjingshao Formation is marked by the first appearance of thick-bedded coarse sandstones (Fig. 1c). At the Xiazhuang section, only the lower part of the Hongjingshao Formation, ~50 m-thick sandstone and siltstone intercalated by a few layers of yellowish mudstone, is exposed. The soft-bodied fossils are uncovered from these intercalated mudstone layers. | |
| Environment: | coastal indet. |
Taphonomy
| Modes of preservation: | body,soft parts |
| Size of fossils: | macrofossils |
| Bioerosion: | none |
| Temporal resolution: | snapshot |
| Spatial resolution: | autochthonous |
Collection methods and comments
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 185938 | ||
| Authorizer: | L. Na | Enterer: | L. Na |
| Modifier: | L. Na | ||
| Created: | 2017-05-25 01:15:10 | Last modified: | 2017-05-25 02:04:07 |
| Access level: | the public | Released: | 2017-05-25 01:15:10 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 62345. | H. Zeng, F. C. Zhao, Z. J. Yin, G. X. Li, and M. Y. Zhu. 2014. A Chengjiang-type fossil assemblage from the Hongjingshao Formation (Cambrian Stage 3) at Chenggong, Kunming, Yunnan. Chinese Science Bulletin 59(25):3169-3175 [L. Na/L. Na/L. Na] |
Secondary references:
| 62318 | fossil record | H. Zeng, F. C. Zhao, Z. J. Yin and M. Y. Zhu. 2017. Appendages of an early Cambrian metadoxidid trilobite from Yunnan, SW China support mandibulate affinities of trilobites and artiopods. 1-23 [L. Na/L. Na] |