Where: Shanxi, China (37.2° N, 110.8° E: paleocoordinates 40.8° N, 88.9° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Yanchang Formation, Ladinian (242.0 - 237.0 Ma)

• First member. Most authors have indicated that the Tongchuan Formation should be abolished as it has no distinctive lithostratigraphic criteria by which it can be separated from the Yanchang Formation.

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithified siliciclastic sediments

Size class: macrofossils

Preservation: mold/impression

Collection methods: Repository: Tianjin Institute of Geology and Mineral Resources

Primary reference: Y. C. Hong. 1984. Insecta. Palaeontological Atlas of North China, II, Mesozoic Volume 128-185 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 155156: authorized by Matthew Clapham, entered by Matthew Clapham on 29.03.2014

Creative Commons license: CC BY (attribution)