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 40872: authorized by David Bottjer, entered by Matthew Clapham on 02.07.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Craniata | |
Nematocrania crassa Grant 1976 | |
Rhynchonellata | |
? Notothyris sp. Waagen 1882 | |
Dielasma sp. King 1856 | |
Terebratuloidea mimula Grant 1976 | |
Uncinunellina sp. Grabau 1932 | |
Callispirina austrina Grant 1976 | |
Rhipidomella cordialis Grant 1976 | |
Hustedia ratburiensis Waterhouse and Piyasin 1970 | |
"Composita advena" = Posicomta advena
"Composita advena" = Posicomta advena Grant 1976 | |
Tipispirifer oppilatus Grant 1976 | |
Cruricella couria Grant 1976 | |
? Astegosia sp. Cooper and Grant 1969
Anomaloria glomerosa Grant 1976 | |
Strophomenata | |
Derbyia scobina Grant 1976 | |
Schuchertella cooperi Grant 1976
Streptorhynchus sulculatum Grant 1976 | |
Meekella addicta Grant 1976 | |
"Chonetinella cymatilis" = Neochonetes (Sommeriella) cymatilis
"Chonetinella cymatilis" = Neochonetes (Sommeriella) cymatilis Grant 1976 | |
Demonedys fastigiata Grant 1976
Costachonetina krotowi Waterhouse 1981 | |
Retimarginifera celeteria, "Gratiosina insculpta" = Transennatia insculpta
Retimarginifera celeteria Grant 1976
"Gratiosina insculpta" = Transennatia insculpta Grant 1976 | |
Marginifera nesiotes Grant 1976 | |
Dyschrestia spodia Grant 1976
Comuquia modesta Grant 1976 | |
Urushtenia murina Grant 1976 | |
Ceocypea sp. Grant 1972 | |
Rigbyella crassa Grant 1976 | |
? Adriana sp. de Gregorio 1930
? Pseudoleptodus sp. Stehli 1956 |