USNM9270, Phangnga: Roadian, Thailand
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Athyridida
- Neoretziidae
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Hustedia ? ratburiensis
Waterhouse and Piyasin 1970
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2 specimens | |||||||||
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Rhynchonellata
- Athyridida
- Athyrididae
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Cleiothyridina seriata n. sp.
Grant 1976
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1000 specimens | |||||||||
| (12 measurements) | ||||||||||
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Rhynchonellata
- Spiriferinida
- Paraspiriferinidae
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Callispirina ? austrina
Grant 1976
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4 specimens | |||||||||
| (3 measurements) | ||||||||||
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Rhynchonellata
- Spiriferinida
- Spiriferellinidae
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Spiriferellina yanagidai
Grant 1976
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2 specimens | |||||||||
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Rhynchonellata
- Spiriferida
- Ambocoeliidae
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Orbicoelia fraterculus
Waterhouse and Piyasin 1970
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8 specimens | |||||||||
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Rhynchonellata
- Spiriferida
- Ingelarellidae
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Martiniopsis trimmata n. sp.
Grant 1976
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130 specimens | |||||||||
| (7 measurements) | ||||||||||
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Rhynchonellata
- Spiriferida
- Trigonotretidae
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Neospirifer sp.
Fredericks 1919
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1 specimen | |||||||||
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Rhynchonellata
- Spiriferida
- Elythidae
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Permophricodothyris notialasiatica n. sp.
Grant 1976
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75 specimens | |||||||||
| (5 measurements) | ||||||||||
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Rhynchonellata
- Terebratulida
- Gillediidae
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Hemiptychina desticata n. sp.
Grant 1976
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22 specimens | |||||||||
| (13 measurements) | ||||||||||
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Strophomenata
- Productida
- Lyttoniidae
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Leptodus sp.
Kayser 1883
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8 specimens | |||||||||
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Strophomenata
- Productida
- Strophalosiidae
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? Heteralosia sp.
King 1938
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4 specimens | |||||||||
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Heteralosia iphia
Grant 1976
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1 specimen | |||||||||
| (1 measurement) | ||||||||||
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Strophomenata
- Productida
- Aulostegidae
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Ramavectus pumwarni n. sp.
Grant 1976
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1 specimen | |||||||||
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Echinosteginae indet.
Muir-Wood and Cooper 1960
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4 specimens | |||||||||
| (4 measurements) | ||||||||||
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Strophomenata
- Productida
- Echinoconchidae
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Bilotina acantha
(Waterhouse and Piyasin 1970)
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350 specimens | |||||||||
| (8 measurements) | ||||||||||
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Strophomenata
- Productida
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Marginifera drastica n. sp.
Grant 1976
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14 specimens | |||||||||
| recombined as Marginifera (Marginifera) drastica | ||||||||||
| (14 measurements) | ||||||||||
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Strophomenata
- Productida
- Linoproductidae
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Linoproductus kaseti n. sp.
Grant 1976
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35 specimens | |||||||||
| (11 measurements) | ||||||||||
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Strophomenata
- Productida
- Productellidae
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Kozlowskia opipara n. sp.
Grant 1976
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300 specimens | |||||||||
| (18 measurements) | ||||||||||
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Celebetes gymnus n. gen., n. sp.
Grant 1976
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60 specimens | |||||||||
| (28 measurements) | ||||||||||
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Strophomenata
- Strophomenida
- Rugosochonetidae
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Striochonetes cf. scutella
Waterhouse and Piyasin 1970
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3 specimens | |||||||||
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Stenolaemata
- Cryptostomata
- Fenestellidae
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Fenestellidae indet.
King 1850
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Stenolaemata
- Cystoporata
- Fistuliporidae
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Fistuliporidae indet.
Ulrich 1882
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Crinoidea
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Crinoidea indet.
Miller 1821
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| see common names | ||||||||||
Geography
| Country: | Thailand |
| Coordinates: | 8.5° North, 98.5° East (view map) |
| Paleocoordinates: | 32.1° South, 106.3° East |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | outcrop |
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: Brachiopod-bearing bed is visible in the cliff wall about 30 feet above the ground but is inaccessible. Blocks containing fossils have fallen from the cliff and lie along the base. 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,cherty/siliceous "limestone" |
| Includes fossils? | Y |
| Lithology description: Dark limestone with a great amount of mud; the blocks that had abundant Bilotina acantha also contained a lot of chert and porous siliceous material forming a fine meshwork of silica through the rock. | |
| Environment: | marine indet. |
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; some other groups are mentioned briefly in text. | |
Metadata
| Database number: | 40868 | ||
| Authorizer: | D. Bottjer, M. Clapham | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2004-07-02 09:19:12 | Last modified: | 2011-05-14 14:12:04 |
| Access level: | the public | Released: | 2004-07-02 09:19:12 |
| 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] |