Where: Trang, Thailand (7.4° N, 99.3° E: paleocoordinates 31.3° S, 107.5° E)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Rat Buri Formation, Roadian (272.3 - 268.8 Ma)
• 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.
• group of beds-level stratigraphic resolution
Environment/lithology: offshore shelf; lithified, argillaceous, sandy limestone
Size class: macrofossils
Preservation: replaced with silica
Collection methods: bulk, surface (float), chemical,
Primary reference: R. E. Grant. 1976. Permian brachiopods from southern Thailand. Paleontological Society Memoir 9:1-269 [D. Bottjer/M. Clapham/M. Clapham]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 40879: authorized by David Bottjer, entered by Matthew Clapham on 02.07.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Rhynchonellata | |
? Astegosia sp. Cooper and Grant 1969
Anomaloria glomerosa Grant 1976 | |
Orbicoelia fraterculus Waterhouse and Piyasin 1970
Cruricella couria Grant 1976 | |
Tipispirifer oppilatus Grant 1976 | |
Hustedia ratburiensis Waterhouse and Piyasin 1970 | |
"Composita advena" = Posicomta advena
"Composita advena" = Posicomta advena Grant 1976 | |
Orthotichia "sp. A" Hall and Clarke 1892 | |
Rhipidomella cordialis Grant 1976 | |
Dielasma sp. King 1856 | |
? Notothyris sp. Waagen 1882 | |
Paraspiriferina gentilis Grant 1976
Callispirina austrina Grant 1976 | |
| |
Goleomixa acymata Grant 1976 | |
Uncinunellina mitigata Grant 1976 | |
| |
Terebratuloidea mimula Grant 1976 | |
Strophomenata | |
Urushtenia murina Grant 1976 | |
? Pseudoleptodus sp. Stehli 1956 | |
Rigbyella crassa Grant 1976 | |
Stereochia litostyla Grant 1976 | |
Marginifera nesiotes Grant 1976 | |
"Chonetinella cymatilis" = Neochonetes (Sommeriella) cymatilis
"Chonetinella cymatilis" = Neochonetes (Sommeriella) cymatilis Grant 1976 | |
Derbyia scobina Grant 1976 | |
Streptorhynchus sulculatum Grant 1976 |