Lower Dong Giao Formation, Song Da Basin, NW Vietnam: Anisian, Vietnam
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Pectinida
- Pseudomonotidae
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Rhynchonellata
- Spiriferinida
- Mentzeliidae
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Mentzelia mentzeli
(Dunker 1851)
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Rhynchonellata
- Terebratulida
- Dielasmatidae
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Coenothyris vulgaris
(Schlotheim 1820)
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| see common names | |||||||
Geography
| Country: | Vietnam |
| Coordinates: | 21.5° North, 104.0° East (view map) |
| Paleocoordinates: | 14.6° South, 103.5° East (Wright 2013) |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | basin |
Time
| Period: | Triassic | Epoch: | Middle Triassic |
| Stage: | Anisian | 10 m.y. bin: | Triassic 2 |
| Key time interval: | Anisian | ||
| Age range of interval: | 246.7 - 241.464 m.y. ago |
Stratigraphy
| Formation: | Dong Giao | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: 1200-1800 m thick total. | |||||
Lithology and environment
| Primary lithology: | "limestone" |
| 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: | 44763 | ||
| Authorizer: | D. Bottjer | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2004-09-17 10:01:12 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2004-09-17 10:01:12 |
| 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] |