Locality B25, B25.54, ESE of Duoba village, Baingoin District, Lhasa Terrane (Cretaceous to of China)

Where: Xizang, China (31.4° N, 89.8° E: paleocoordinates 14.3° N, 87.3° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Langshan Formation, Aptian to Aptian (125.0 - 100.5 Ma)

• early Cretaceous, Aptian or Albian

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

• Description of Locality B25: A thick sequence of shallow marine calcareous shales and limestones of lagoonal facies, with rudist reefs. There is one clastic horizon in the sequence that is ?hypomarine.
• Orbitolina limestone

Size class: microfossils

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 61404: authorized by Martin Aberhan, entered by Sabine Nürnberg on 09.06.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Foraminifera
 Orbitolinacea - Orbitolinidae
 Textulariina - Cuneolinidae
 Lituolacea - Mayncinidae