Lower Van Lang Formation, An Chau Basin, NE Vietnam: Norian, Vietnam
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Ostreida
- Bakevelliidae
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Gervillia cf. inflata
Schafhaeutl 1851
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Bivalvia
- Cardiida
- Anthracosiidae
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| see common names | |||||||
Geography
| Country: | Vietnam |
| Coordinates: | 21.8° North, 106.5° East (view map) |
| Paleocoordinates: | 21.9° North, 116.7° East (Wright 2013) |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | basin |
Time
| Period: | Triassic | Epoch: | Late Triassic |
| Stage: | Norian | 10 m.y. bin: | Triassic 4 |
| Key time interval: | Norian | ||
| Age range of interval: | 227.3 - 205.7 m.y. ago |
Stratigraphy
| Formation: | Van Lang | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: 400-600 m thick total. Overall Norian-Rhaetian but lower part is probably Norian. Upper non-marine section is Rhaetian. | |||||
Lithology and environment
| Primary lithology: | calcareous sandstone |
| Secondary lithology: | calcareous siltstone |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 44759 | ||
| Authorizer: | D. Bottjer | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2004-09-17 09:51:04 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2004-09-17 09:51:04 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 11693. | V. Khuc. 2000. The Triassic of Indochina Peninsula and its interregional correlation. Permian-Triassic Evolution of Tethys and Western Circum-Pacific 221-233 [D. Bottjer/M. Clapham/M. Clapham] |