USNM9271, Block 1, Ko Muk Island northeast: Roadian, Thailand
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Rhynchonellata
- Spiriferida
- Brachythyrididae
|
||||||||||
|
Martiniidae indet.
Waagen 1883
|
20 specimens | |||||||||
| (10 measurements) | ||||||||||
|
= Pustuloplica cooperi n. sp.
Waterhouse 1981
|
Waterhouse 1981 | |||||||||
|
Rhynchonellata
- Spiriferida
- Ambocoeliidae
|
||||||||||
|
Orbicoelia fraterculus
Waterhouse and Piyasin 1970
|
4 specimens | |||||||||
|
Cruricella couria
Grant 1976
|
1 specimen | |||||||||
|
Rhynchonellata
- Spiriferida
- Spiriferellidae
|
||||||||||
|
Tipispirifer oppilatus
Grant 1976
|
5 specimens | |||||||||
|
Rhynchonellata
- Athyridida
- Neoretziidae
|
||||||||||
|
Hustedia ratburiensis
Waterhouse and Piyasin 1970
|
40 specimens | |||||||||
|
Rhynchonellata
- Orthida
- Rhipidomellidae
|
||||||||||
|
Rhipidomella cordialis
Grant 1976
|
1 specimen | |||||||||
|
Rhynchonellata
- Terebratulida
- Dielasmatidae
|
||||||||||
|
Dielasma sp.
King 1856
|
9 specimens | |||||||||
|
Rhynchonellata
- Spiriferinida
- Paraspiriferinidae
|
||||||||||
|
Paraspiriferina ? gentilis
Grant 1976
|
1 specimen | |||||||||
|
Callispirina austrina
Grant 1976
|
18 specimens | |||||||||
|
Rhynchonellata
- Rhynchonellida
- Stenoscismatidae
|
||||||||||
|
Stenoscisma informal sp. B
Conrad 1839
|
1 specimen | |||||||||
| (1 measurement) | ||||||||||
|
Rhynchonellata
- Rhynchonellida
- Psilocamaridae
|
||||||||||
|
Goleomixa acymata
Grant 1976
|
12 specimens | |||||||||
|
Rhynchonellata
- Rhynchonellida
- Pontisiidae
|
||||||||||
|
Pontisia exoria
Grant 1976
|
3 specimens | |||||||||
| (7 measurements) | ||||||||||
|
Rhynchonellata
- Rhynchonellida
- Allorhynchidae
|
||||||||||
|
Terebratuloidea mimula
Grant 1976
|
10 specimens | |||||||||
| (20 measurements) | ||||||||||
|
Strophomenata
- Productida
- Strophalosiidae
|
||||||||||
|
Heteralosia iphia n. sp.
Grant 1976
|
9 specimens | |||||||||
| (10 measurements) | ||||||||||
|
Strophomenata
- Productida
- Aulostegidae
|
||||||||||
|
Urushtenia murina
Grant 1976
|
2 specimens | |||||||||
| (16 measurements) | ||||||||||
|
Strophomenata
- Productida
- Rigbyellidae
|
||||||||||
|
Rigbyella crassa
Grant 1976
|
1 specimen | |||||||||
| (20 measurements) | ||||||||||
|
Strophomenata
- Productida
- Productidae
|
||||||||||
|
Stereochia litostyla
Grant 1976
|
20 specimens | |||||||||
| (9 measurements) | ||||||||||
|
Strophomenata
- Productida
- Productellidae
|
||||||||||
|
Dyschrestia spodia
Grant 1976
|
16 specimens | |||||||||
| (1 measurement) | ||||||||||
|
Strophomenata
- Productida
|
||||||||||
|
Marginifera nesiotes
Grant 1976
|
7 specimens | |||||||||
| (19 measurements) | ||||||||||
|
Strophomenata
- Productida
- Paucispiniferidae
|
||||||||||
|
Retimarginifera celeteria
Grant 1976
|
1 specimen | |||||||||
| (12 measurements) | ||||||||||
|
Strophomenata
- Strophomenida
- Anopliidae
|
||||||||||
|
Demonedys fastigiata
Grant 1976
|
110 specimens | |||||||||
| (27 measurements) | ||||||||||
|
Strophomenata
- Strophomenida
- Rugosochonetidae
|
||||||||||
|
Chonetinella cymatilis
Grant 1976
|
350 specimens | |||||||||
| recombined as Neochonetes (Sommeriella) cymatilis | ||||||||||
| (9 measurements) | ||||||||||
|
Strophomenata
- Orthotetida
- Derbyiidae
|
||||||||||
|
Derbyia scobina
Grant 1976
|
3 specimens | |||||||||
| (18 measurements) | ||||||||||
|
Strophomenata
- Orthotetida
- Meekellidae
|
||||||||||
|
Meekella addicta
Grant 1976
|
36 specimens | |||||||||
| (28 measurements) | ||||||||||
|
Craniata
- Craniida
- Craniidae
|
||||||||||
|
Nematocrania crassa
Grant 1976
|
1 specimen | |||||||||
| (4 measurements) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Thailand | State/province: | Trang |
| Coordinates: | 7.4° North, 99.3° East (view map) | ||
| Paleocoordinates: | 31.3° South, 107.5° East | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | small collection |
Time
| Period: | Permian | Epoch: | Guadalupian |
| Stage: | Roadian | 10 m.y. bin: | Permian 3 |
| Key time interval: | Roadian | ||
| Age range of interval: | 273.01000 - 266.90000 m.y. ago |
Stratigraphy
| Formation: | Rat Buri | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Blocks are derived from seacliffs, making it impossible to measure a stratigraphic section or determine whether they are derived from a single horizon. The age of the Rat Buri fauna is problematic. "Rat Buri" limestones likely range in age from Kungurian through Capitanian to perhaps Wuchiapingian. Wordian fusulinids appear most common in other collections, but are not found in association with the brachiopod localities. The brachopod fauna is most similar to the Wordian Amb Formation of the Salt Range, in Pakistan, tentatively indicating a Wordian age. | |||||
Lithology and environment
| Primary lithology: | argillaceous,sandy "limestone" |
| Includes fossils? | Y |
| Environment: | offshore shelf |
| Geology comments: Interpreted as rather quiet water that was deep enough not to be disrupted by ordinary wave action. It was a fairly flat sea floor bearing an abundant fauna of small organisms with bryozoans and crinoids in patches like gardens. | |
Taphonomy
| Modes of preservation: | body,replaced with silica |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | bulk,surface (float),chemical,field collection |
| Reason for describing collection: | paleoecologic analysis |
| Taxonomic list comments:Concentrates on brachiopods, and other groups are listed only in the text for the generic total collection, not for the subset individual blocks. | |
Metadata
| Database number: | 40871 | ||
| Authorizer: | D. Bottjer, M. Clapham | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2004-07-02 10:21:30 | Last modified: | 2011-05-14 14:16:11 |
| Access level: | the public | Released: | 2004-07-02 10:21:30 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 11031. | R. E. Grant. 1976. Permian brachiopods from southern Thailand. Paleontological Society Memoir 9:1-269 [D. Bottjer/M. Clapham/M. Clapham] |
Secondary references:
| 27444 | J. B. Waterhouse. 1981. Early Permian brachiopods from Ko Yao Noi and near Krabi, southern Thailand. The Permian Stratigraphy and Palaeontology of Southern Thailand. Geological Survey of Thailand Memoir 4(2):45-213 [M. Clapham/M. Clapham] |