Locality B4, Exposures near Qibulung, Lhasa Terrane (Triassic of China)

Where: Xizang, China (30.0° N, 91.3° E: paleocoordinates 6.2° N, 67.0° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Mailonggang Formation, Carnian (237.0 - 228.0 Ma)

• Carnian, Upper Triassic

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal ramp; lithified lime mudstone and lithified shale

• interpreted as carbonate ramp facies
• well bedded micritic limestones with shales

Size class: macrofossils

Preservation: recrystallized

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 61262: authorized by Martin Aberhan, entered by Sabine Nürnberg on 02.06.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Crinoidea
 Isocrinida - Isocrinidae
"Isocrinus" candelabrum Sea lily
columnals
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
micromorphic
Bivalvia
  -
Bivalvia indet. Linnaeus 1758 clam
fragmentary
Anthozoa
 Hexacorallia -
Scleractinia indet. Bourne 1900 stony coral
fragmentary
Stromatoporoidea
 Stromatoporida -
? Stromatoporida indet. Stearn 1980 stromatoporoid sponge
branched