Changle, HHC8, Huayuan County, Nantsinkwan Formation, Hunan: Tremadoc, China
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Agnostida
- Metagnostidae
|
|||||||
|
Geragnostus cf. yangtzeensis
|
1 specimen | ||||||
|
Trilobita
- Corynexochida
- Leiostegiidae
|
|||||||
|
Paraszechuanella changleensis
|
5 specimens | ||||||
|
Trilobita
- Asaphida
- Asaphidae
|
|||||||
|
Asaphellus yanheensis
|
2 specimens | ||||||
|
Trilobita
- Asaphida
- Hungaiidae
|
|||||||
|
Dactylocephalus latus n. sp.
|
3 specimens | ||||||
|
Trilobita
- Ptychopariida
- Shumardiidae
|
|||||||
|
Shumardia (Conophrys) gaoluoensis
|
2 specimens | ||||||
| see common names | |||||||
Geography
| Country: | China |
| Coordinates: | 28.6° North, 109.5° East (view map) |
| Paleocoordinates: | 19.3° North, 142.6° East |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | small collection |
Time
| 10 m.y. bin: | Cambrian-Ordovician |
| Key time interval: | Tremadoc |
| Age range of interval: | 485 - 477.7 m.y. ago |
Stratigraphy
| Formation: | Nantsinkwan | ||
| Local section: | Changle | Local bed: | HHC8 |
| Local order: | bottom to top | ||
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | lithified "shale" |
| Includes fossils? | Y |
| Lithology description: light yellow, greyish-green and purple shale, intercalated in limestone beds | |
| Environment: | shallow subtidal indet. |
| Geology comments: easternmost part of the Yangtze carbonate platform | |
Taphonomy
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Taxonomic list comments:trilobites only | |
Metadata
| Database number: | 66808 | ||
| Authorizer: | W. Kiessling | Enterer: | U. Merkel | Research group: | marine invertebrate |
| Created: | 2006-10-17 07:35:36 | Last modified: | 2006-10-17 10:35:37 |
| Access level: | the public | Released: | 2006-10-17 07:35:34 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 19023. | S. Peng. 1990. Tremadoc stratigraphy and trilobite faunas of northwestern Hunan. 1: Trilobites from the Nantsinkwan Formation of the Yangtze Platform. Beringeria 2:3-53 [W. Kiessling/U. Merkel] |