KC02-10, Ky Cung River section (Triassic of Vietnam)

Where: Vietnam (21.8° N, 106.7° E: paleocoordinates 6.3° N, 98.3° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Xenoceltites variocostatus ammonoid zone, Bac Thuy Formation, Smithian (251.3 - 247.2 Ma)

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified limestone

Size classes: macrofossils, microfossils

Preservation: mold/impression

Collection methods: Repository: All cephalopod, gastropod, ostracod and conodont specimens are reposited at the National Museum of Nature and Science, Tsukuba. Bivalves are stored in the Faculty of Science, Kumamoto University, Kumamoto, and radiolarian specimens are stored at Tokyo Gakugei University, Koganei.

Primary reference: Y. Shigeta, T. Komatsu, T. Maekawa and H. T. Dang. 2014. Olenekian (Early Triassic) stratigraphy and fossil assemblages in northeastern Vietnam. National Museum of Nature and Science Monographs 45:1-309 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 155516: authorized by Matthew Clapham, entered by Matthew Clapham on 15.04.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

 Spumellaria - Oertlispongidae
Paroertlispongus spinorientalis n. sp. Takahashi 2014 radiolarian
 Entactinaria - Tetrentactiniidae
Multisphaera triassorobusta n. sp. Takahashi 2014 radiolarian
 Entactinaria - Entactiniidae
? Plenoentactinia terespongia n. sp. Takahashi 2014 radiolarian
? Retentactinia kycungensis Takahashi 2014 radiolarian
? Retentactinia parvisphaera Takahashi 2014 radiolarian
? Spongentactinia sp. Nazarov 1975 radiolarian
 Entactinaria - Thalassothamnidae
Triassothamnus verticillatus Dumitrica 1980 radiolarian
 Entactinaria - Pentactinocarpidae
? Pentactinocarpus aff. acanthicus Dumitrica 1978 radiolarian
 Nassellaria - Archaeosemantidae
Tandarnia recoarensis Dumitrica 1982 radiolarian
 Ozarkodinida - Gondolellidae
? Icriospathodus zaksi Buryi 1979 conodont
Novispathodus pingdingshanensis Zhao and Orchard 2007 conodont
 Ceratitida - Xenoceltitidae
Xenoceltites variocostatus Brayard and Bucher 2008 ceratite