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 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 40898: authorized by David Bottjer, entered by Matthew Clapham on 02.07.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Rhynchonellata | |
Martiniopsis sp. Waagen 1883 | |
Cruricella couria Grant 1976 | |
Tipispirifer oppilatus Grant 1976
Spiriferella sp. Tschernyschew 1902 | |
Hustedia ratburiensis Waterhouse and Piyasin 1970
Hustedia funaria Grant 1976 | |
Cleiothyridina tribulosa, "Composita advena" = Posicomta advena
Cleiothyridina tribulosa Grant 1976
"Composita advena" = Posicomta advena Grant 1976 | |
Orthotichia "sp. B" Hall and Clarke 1892 | |
Rhipidomella cordialis Grant 1976 | |
Spiriferellina yanagidai Grant 1976 | |
"Stenoscisma tetricum" = Liufaia tetricum
"Stenoscisma tetricum" = Liufaia tetricum Grant 1976 | |
Pontisia exoria Grant 1976 | |
Strophomenata | |
Paralyttonia tenax Grant 1976 | |
"Gratiosina insculpta" = Transennatia insculpta
"Gratiosina insculpta" = Transennatia insculpta Grant 1976 | |
"Chonetinella cymatilis" = Neochonetes (Sommeriella) cymatilis
"Chonetinella cymatilis" = Neochonetes (Sommeriella) cymatilis Grant 1976 | |
Derbyia scobina Grant 1976 | |
Streptorhynchus sulculatum Grant 1976 |