Where: Guizhou, China (27.2° N, 104.4° E: paleocoordinates 6.4° N, 93.8° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Kayitou Formation, Griesbachian (251.9 - 250.5 Ma)

• Samples from this section represent the Permian-Triassic boundary beds (KL1 - 4) and earliest Triassic beds (KL5 & 6)

• bed-level stratigraphic resolution

Environment/lithology: marginal marine; mudstone

Size class: macrofossils

Preservation: mold/impression

Collection methods: Repository: State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences (BGEG), Wuhan, China

Primary reference: T. Song, J. Tong, L. Tian, D. Chu, and Y. Huang. 2018. Taxonomic and ecological variations of Permian-Triassic transitional bivalve communities from the littoral clastic facies in southwestern China. Palaeogeography, Palaeoclimatology, Palaeoecology 519:108-123 [A. Dunhill/B. Allen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 205991: authorized by Alex Dunhill, entered by Bethany Allen on 28.10.2019

Creative Commons license: CC BY (attribution)