Where: Ratchaburi, Thailand (13.5° N, 99.7° E: paleocoordinates 30.9° S, 100.4° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Rat Buri Formation, Roadian (272.3 - 268.8 Ma)
• 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: marine; lithified, shelly/skeletal, red limestone
Size class: macrofossils
Preservation: replaced with silica
Collection methods: bulk, 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 40936: authorized by David Bottjer, entered by Matthew Clapham on 03.07.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Anthozoa | |
Amygdalophyllum sp. Dun and Benson 1920 horn coral | |
Demospongiae | |
cf. Girtycoelia sp. King 1933 demosponge | |
Stenolaemata | |
| |
Rhynchonellata | |
Orbicoelia fraterculus Waterhouse and Piyasin 1970 | |
Hustedia ratburiensis Waterhouse and Piyasin 1970 | |
Cleiothyridina seriata, "Composita dolabrata n. sp." = Posicomta dolabrata
Cleiothyridina seriata Grant 1976
"Composita dolabrata n. sp." = Posicomta dolabrata Grant 1976 | |
"Orthotichia waterhousei n. sp." = Kotlaia waterhousei
"Orthotichia waterhousei n. sp." = Kotlaia waterhousei Grant 1976 | |
Rhipidomella cordialis Grant 1976 | |
Paraspiriferina cf. ghundiensis Reed 1944 | |
Stenoscisma "sp. C" Conrad 1839 | |
Strophomenata | |
Pseudoavonia kunlunensis de Terra 1932
Echinauris sp. Muir-Wood and Cooper 1960 | |
Bilotina acantha Waterhouse and Piyasin 1970 | |
"Waagenites speciosus" = Waterhouseiella speciosa, Striochonetes scutella
"Waagenites speciosus" = Waterhouseiella speciosa Waterhouse and Piyasin 1970
Striochonetes scutella Waterhouse and Piyasin 1970 | |
Meekella colpata Grant 1976 | |
Gastropoda | |
"Pleurotomariacea indet." = Pleurotomarioidea
| |
Bellerophontida indet. Ulrich and Scofield 1897 snail | |
Foraminifera | |
Ozawainella sp. Thompson 1935 |