Where: Gansu, China (35.1° N, 106.8° E: paleocoordinates 36.1° N, 109.8° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Huachi-Huanhe Formation (Zhidan Group), Hauterivian (132.9 - 129.4 Ma)

• Magnetostratigraphy suggests age from 133.94-129.73 Ma

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; lithified, gray, green, calcareous siltstone

Size class: macrofossils

Preservation: adpression

Collection methods: Repository: Beijing Natural History Museum

Primary reference: Y. C. Hong. 1995. Fossil insects of the southern Ordos Basin. Acta Geologica Gansu 4(1):1-13 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 140469: authorized by Matthew Clapham, entered by Matthew Clapham on 10.03.2013

Creative Commons license: CC BY (attribution)