Locality B1, Section at Urulung, north east of Lhasa (Permian to of China)

Where: Xizang, China (30.3° N, 91.3° E: paleocoordinates 47.0° S, 87.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Pondo Group, Asselian to Asselian (298.9 - 290.1 Ma)

• Near the top of the Pondo Group: Early Permian (Asselian/Sakmarian).

• bed-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified, calcareous sandstone

• Allochthonous assemblage probably of storm deposit origins at or near wave base.
• The fossils come from a thin calcareous sandstone bed.

Size class: macrofossils

Collection methods: Paleontological collections made on the 1985 Geotraverse.

Primary reference: A. B. Smith and J. Xu. 1988. Palaeontology of the 1985 Geotraverse, Lhasa to Golmud. Philosophical Transactions of the Royal Society of London A 327:53-105 [M. Aberhan/S. Nurnberg/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 61244: authorized by Martin Aberhan, entered by Sabine Nürnberg on 01.06.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Spiriferinida - Pennospiriferinidae
"Mucrospiriferinella cf. undulosa" = Xestotrema
"Mucrospiriferinella cf. undulosa" = Xestotrema
Strophomenata
 Productida - Monticuliferidae
"cf. Cancrinelloides monticulus" = Bandoproductus hemiglobicus
"cf. Cancrinelloides monticulus" = Bandoproductus hemiglobicus Jin and Sun 1981
 Strophomenida - Anopliidae
"cf. Chonetes ambiensis" = Tornquistia ambiensis
"cf. Chonetes ambiensis" = Tornquistia ambiensis Waagen 1884