Where: Shandong, China (36.6° N, 118.7° E: paleocoordinates 36.5° N, 116.3° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Shanwang Formation, Burdigalian (20.4 - 16.0 Ma)

• Paleomagnetic and radiometric evidence correlates the Shanwang Formation to subchron 5En of Chron 5. The main part of the Shanwang Formation covers 18.524 Ma to 18.056 Ma, with the Shanwang Formation as a whole covering 18.5 ma to 17.5 Ma. Recent paleontological results show that the Shanwang Formation can be correlated with the European mammalian zone MN instead of the previous MN5.

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - large; lithified, diatomaceous, tuffaceous mudstone

Size classes: macrofossils, mesofossils

Preservation: adpression

Collection methods: Repository: either Shandong Provincial Museum or the Museum of Shanwang fossils. This collection contains specimens labeled with the character "dong" followed by a two-digit number and "south"

Primary reference: Y. C. Hong. 1984. Fossil insects in the diatoms of Shanwang. Bulletin of the Tianjin Institute of Geology and Mineral Resources 8:1-15 [D. Smith/E. Leckey/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 128549: authorized by Matthew Clapham, entered by Matthew Clapham on 11.06.2012

Creative Commons license: CC BY (attribution)