KYNJ, Ko Yao Noi (Permian of Thailand)

Where: Thailand (8.1° N, 98.6° E: paleocoordinates 33.9° S, 109.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: E-Lert Formation (Ratburi Group), Kungurian (279.3 - 272.3 Ma)

• A similar brachiopod fauna occurs along with late Kungurian conodonts Mesogondolella idahoensis and Vjalovognathus nicolli in Myanmar (Xu et al., 2021). PJW: This probably should be the E-Lert formation now.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, tuffaceous sandstone

Size class: macrofossils

Preservation: mold/impression

Collection methods: Repository: Geological Survey of Thailand, Department of Mines, Bangkok

Primary reference: J. B. Waterhouse. 1981. Early Permian brachiopods from Ko Yao Noi and near Krabi, southern Thailand. The Permian Stratigraphy and Palaeontology of Southern Thailand. Geological Survey of Thailand Memoir 4(2):45-213 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 117142: authorized by Matthew Clapham, entered by Matthew Clapham on 15.09.2011, edited by Josh Mordaunt

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Productida - Paucispiniferidae
Retimarginifera alata Waterhouse 1981
Caricula sp. Grant 1976
 Productida - Productidae
Stereochia koyaoensis Waterhouse 1981
Spinifrons planoconvexa n. sp. Waterhouse 1981
 Productida - Productellidae
Dyschrestia sp. Grant 1976
Kutorginella paucispinosa n. sp. Waterhouse 1981
 Productida - Echinoconchidae
"Karawankina typica" = Karavankina typica, "Juresania dissimilis" = Vediproductus dissimilis
"Karawankina typica" = Karavankina typica Ramovs 1966
Waterhouse identified as cf.; identified certainly by Xu et al.
"Juresania dissimilis" = Vediproductus dissimilis Waterhouse 1981
 Productida - Linoproductidae
Cancrinella cancriniformis Tschernyschew 1889
Linoproductus sp. Chao 1927
Kasetia kaseti n. gen. n. sp. Waterhouse 1981
 Orthotetida - Derbyiidae
"Orthotetes perplexus" = Derbyia perplexus
"Orthotetes perplexus" = Derbyia perplexus Waterhouse 1981
 Strophomenida - Rugosochonetidae
"Chonetinella andamanensis" = Neochonetes (Sommeriella) cymatilis
"Chonetinella andamanensis" = Neochonetes (Sommeriella) cymatilis Grant 1976
Rhynchonellata
 Spiriferida - Elythidae
Phricodothyris sp. George 1932
Torynifer turbatus Waterhouse 1981
 Spiriferida - Trigonotretidae
 Spiriferida - Choristitidae
"Brachythyrina rectangulus" = Brachythyrina rectangula
"Brachythyrina rectangulus" = Brachythyrina rectangula Kutorga 1844
 Spiriferida - Spiriferellidae
Spiriferella modesta n. sp. Waterhouse 1981
 Spiriferida - Martiniidae
Spinomartinia prolifica Waterhouse 1981
 Athyridida - Athyrididae
Cleiothyridina sp. Buckman 1906
 Spiriferinida -
"Spiriferinacea indet." = Spiriferinoidea
"Spiriferinacea indet." = Spiriferinoidea Davidson 1884
 Spiriferinida - Paraspiriferinidae
? Callispirina sp. Cooper and Muir-Wood 1951
 Rhynchonellida - Stenoscismatidae
 Terebratulida - Notothyrididae
Notothyris hexeris Waterhouse 1981
 Terebratulida - Dielasmatidae
? Dielasma sp. King 1856