Khao Phrik, Locality 3, Rat Buri (Permian of Thailand)

Where: Ratchaburi, Thailand (13.5° N, 99.7° E: paleocoordinates 31.0° S, 100.3° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Rat Buri Formation, Roadian (272.3 - 268.8 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified, argillaceous limestone and lithified, black, argillaceous, carbonaceous limestone

• Fore-reef that is relatively open to the sea
• Two kinds of rock: muddy pale limestone and a black limestone that left a large residue of carbonaceous clay

Size class: macrofossils

Preservation: replaced with silica

Collected by J. Yanagida, S. Sakagami in 1965-1966

Collection methods: bulk, chemical,

Primary reference: S. Sakagami. 1968. Permian Bryozoa from Khao Phrik, near Rat Buri, Thailand. Geology and Palaeontology of Southeast Asia 4:45-66 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 116879: authorized by Matthew Clapham, entered by Matthew Clapham on 13.09.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Productida - Echinoconchidae
Bilotina acantha1 Waterhouse and Piyasin 1970
 Productida - Productellidae
"Marginifera otaria" = Marginifera (Otariella) otaria1
"Marginifera otaria" = Marginifera (Otariella) otaria1 Grant 1976
 Productida - Rugosochonetidae
"Neochonetes sakagamii n. sp." = Waterhouseiella speciosa3, "Ratburia komalarjuni n. gen. n. sp." = Striochonetes scutella3
"Neochonetes sakagamii n. sp." = Waterhouseiella speciosa3 Waterhouse and Piyasin 1970
"Ratburia komalarjuni n. gen. n. sp." = Striochonetes scutella3 Waterhouse and Piyasin 1970
 Productida - Lyttoniidae
Leptodus sp.3 Kayser 1883
 Orthotetida - Meekellidae
Meekella colpata1 Grant 1976
Rhynchonellata
 Athyridida - Neoretziidae
"Hustedia nakornsrii n. sp." = Hustedia ratburiensis3
"Hustedia nakornsrii n. sp." = Hustedia ratburiensis3 Waterhouse and Piyasin 1970
 Athyridida - Athyrididae
 Terebratulida - Notothyrididae
Notothyris triplax1 Grant 1976
 Terebratulida - Gillediidae
 Terebratulida - Dielasmatidae
 Spiriferinida - Spiriferellinidae
"Spiriferellina adunctata" = Spiriferellina aduncata1
"Spiriferellina adunctata" = Spiriferellina aduncata1 Waterhouse and Piyasin 1970
 Spiriferinida - Paraspiriferinidae
 Spiriferida - Elythidae
 Orthida - Schizophoriidae
"Orthotichia waterhousei" = Kotlaia waterhousei1
"Orthotichia waterhousei" = Kotlaia waterhousei1 Grant 1976
Stenolaemata
 Fenestrida - Fenestellidae
"Fenestella megacapillaris n. sp." = Alternifenestella megacapillaris
"Fenestella megacapillaris n. sp." = Alternifenestella megacapillaris Sakagami 1968
 Fenestrida - Acanthocladiidae
Acanthocladia thaiensis n. sp. Sakagami 1968
 Fenestrida - Polyporidae
 Cystoporida - Hexagonellidae
Hexagonella khaophrikensis n. sp. Sakagami 1968
Hexagonella robusta n. sp. Sakagami 1968
 Cystoporida - Fistuliporidae
Fistulipora sp., "Fistulipora ramosa" = Fistulipora horowitzi
Fistulipora sp. McCoy 1850
"Fistulipora ramosa" = Fistulipora horowitzi Sakagami 1970
 Cryptostomata - Hyphasmoporidae
? Streblotrypa crassa n. sp., Ogbinopora sp.2, "Streblascopora ratburiensis n. sp." = Ogbinopora ratburiensis
? Streblotrypa crassa n. sp. Sakagami 1968
Ogbinopora sp.2 Shishova 1965
"Streblascopora ratburiensis n. sp." = Ogbinopora ratburiensis Sakagami 1968
 Rhabdomesida - Rhabdomesidae
Ascopora asiatica n. sp. Sakagami 1968
Ascopora yanagidae n. sp. Sakagami 1968
Ascopora nakornsrii n. sp. Sakagami 1968
Ascopora magna n. sp. Sakagami 1968
Anthozoa
 Stauriida - Hapsiphyllidae
Allotropiophyllum sp. Grabau 1928 horn coral