Hubei Province [Shuijingtuo Fm]: Atdabanian, China
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cambroclavida
- Zhijinitidae
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Deltaclavus graneus n. sp.
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Trilobita
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Trilobita indet.
Walch 1771
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| see common names | |||||||
Geography
| Country: | China |
| Coordinates: | 30.8° North, 111.3° East (view map) |
| Paleocoordinates: | 25.4° North, 159.3° East |
| Basis of coordinate: | based on political unit |
| Geographic resolution: | small collection |
Time
| Period: | Cambrian | Epoch: | Series 2 |
| Stage: | Stage 3 | 10 m.y. bin: | Cambrian 2 |
| *Period: | Early/Lower Cambrian | *Epoch: | Early/Lower Caerfai |
| *International age/stage: | Late/Upper Nemakit-Daldynian - Tommotian | *Local age/stage: | Late/Upper Meishucun Stage - Qiongzhusi Stage |
| Key time interval: | Atdabanian | ||
| Age range of interval: | 521 - 515.6 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Shuijingtuo | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: Sample was a fallen block in a roadside quarry about 250m south of the Precambrian-Cambrian boundary as locally defined withing the Tianzhushan member of the Dengying Formation. | |||||
Lithology and environment
| Primary lithology: | intraclastic "limestone" |
| Lithology description: the formation is predominantly clastic, but carbonate horizons have not revealed many specimens. | |
| Environment: | marine indet. |
Taphonomy
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Specimens are mostly isolated sclerites, but there are rare occurances of fused preservation. The sclerites are relatively small as comparred to other cambroclave specimens (350-450 um in length). | |
Metadata
| Database number: | 8090 | ||
| Authorizer: | M. Patzkowsky | Enterer: | P. Borkow |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2000-06-19 09:29:44 | Last modified: | 2009-04-22 16:21:09 |
| Access level: | the public | Released: | 2000-06-19 09:29:44 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 506. | S. Conway Morris and M. Chen. 1991. Cambroclaves and paracarinachitids, early skeletal problematica from the Lower Cambrian of South China. Palaeontology 34(2):357-397 [M. Patzkowsky/P. Borkow/P. Wagner] |