Nam Tham Formation, Song Da Basin, NW Vietnam (Triassic of Vietnam)

Where: Vietnam (21.5° N, 104.0° E: paleocoordinates 10.4° N, 92.8° E)

• coordinate based on nearby landmark

• basin-level geographic resolution

When: Nam Tham Formation, Ladinian (242.0 - 237.0 Ma)

• 400-700 m thick. Early Ladinian.

• formation-level stratigraphic resolution

Environment/lithology: marine; siliciclastic sediments and marl

• Marl, clay shale, siltstone, sandstone with some interbedded limestone.

Size class: macrofossils

Primary reference: V. Khuc. 2000. The Triassic of Indochina Peninsula and its interregional correlation. Permian-Triassic Evolution of Tethys and Western Circum-Pacific 221-233 [D. Bottjer/M. Clapham/M. Clapham]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 44765: authorized by David Bottjer, entered by Matthew Clapham on 17.09.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Ostreida - Halobiidae
Daonella (Arzelella) indica Bittner 1899 oyster
Daonella (Lommelella) lommeli Wissmann 1841 oyster
"Zittelihalobia planicostata" = Halobia (Zittelihalobia) oyster
 Ostreida - Posidoniidae
"Posidonia wengensis" = Bositra wengensis
"Posidonia wengensis" = Bositra wengensis Wissmann 1841 oyster
Cephalopoda
 Ceratitida - Rimkinitidae
 Ceratitida - Trachyceratidae