Ko Muk Island, Collection 1: Asselian, Thailand
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Terebratulida
- Dielasmatidae
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Elasmata retusus
Waterhouse 1982
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1 individual | |||||||||
| 1 articulated specimen | ||||||||||
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Rhynchonellata
- Rhynchonellida
- Rhynchoporidae
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Rhynchopora culta
Waterhouse 1982
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2 individuals | |||||||||
| 2 dorsal valves | ||||||||||
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Rhynchonellata
- Spiriferida
- Trigonotretidae
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Sulciplica thailandica
(Hamada 1960)
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1 individual | |||||||||
| 1 dorsal valve | ||||||||||
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Strophomenata
- Strophomenida
- Rugosochonetidae
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Komukia solita n. gen., n. sp.
Waterhouse 1982
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34 individuals | |||||||||
| 13 ventral valves, 10 dorsal, 21 articulated (1 measurement) | ||||||||||
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Strophomenata
- Productida
- Monticuliferidae
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Cancrinelloides monticulus
Waterhouse 1982
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8 individuals | |||||||||
| recombined as Bandoproductus monticulus | ||||||||||
| 8 ventral valves | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Thailand |
| Coordinates: | 7.4° North, 99.3° East (view map) |
| Paleocoordinates: | 33.2° South, 122.6° East |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | outcrop |
Time
| Period: | Permian | Epoch: | Cisuralian |
| Stage: | Asselian | 10 m.y. bin: | Permian 1 |
| Key time interval: | Asselian | ||
| Age range of interval: | 298.90000 - 293.52000 m.y. ago |
Stratigraphy
| Geological group: | Phuket | Formation: | Lower | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: An interval of rock some 65 m thick lies between the fossil bands and Kungurian Rat Buri Limestone, potentially including beds equivalent to Sakmarian upper Ko Yao Noi Formation - suggests late Asselian age; Equivalent to Kaeng Krachan Group | |||||
Lithology and environment
| Primary lithology: | pebbly siltstone |
| Includes fossils? | Y |
| Environment: | marine indet. |
| Geology comments: Sediments consist mostly of sandstone and siltstone, frequently with small scattered pebbles, rounded or angular, composed chiefly of quartz, limestone, granite, or granodiorite, up to 10 cm in diameter. Calcareous beds are rare and a few layers have been burrowed. | |
Taphonomy
| Modes of preservation: | body,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 40148 | ||
| Authorizer: | D. Bottjer | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2004-06-18 15:13:20 | Last modified: | 2013-08-31 13:34:41 |
| Access level: | the public | Released: | 2004-06-18 15:13:20 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 10875. | J. B. Waterhouse. 1982. An Early Permian cool-water fauna from pebbly mudstones in south Thailand. Geological Magazine 119(4):337-354 [D. Bottjer/M. Clapham/M. Clapham] |