Where: Liaoning, China (41.6° N, 120.8° E: paleocoordinates 44.5° N, 122.3° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Yixian Formation, Early/Lower Aptian (125.5 - 122.5 Ma)

• U-Pb dating suggests that the Huangbanjigou section ranges from 124.9 ± 1.7 Ma to 122.8 ± 1.6 Ma (Yang et al., 2007). Chang et al. (2017) obtained Ar/Ar ages of 125.8 ± 1.0 Ma and 126.0 ± 0.8 Ma from the Lujiatun Unit, the lowest part of the Yixian Formation, below the lacustrine shales.

• group of beds-level stratigraphic resolution

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

Size classes: macrofossils, mesofossils

Preservation: adpression

Collection methods: Repository: Capital Normal University, Beijing

Primary reference: L. C. Guo, C. K. Shih, L. F. Li and D. Ren. 2016. New pelecinid wasps (Hymenoptera: Pelecinidae) from the Yixian Formation of western Liaoning, China. Cretaceous Research 61:151-160 [M. Clapham/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 176345: authorized by Matthew Clapham, entered by Matthew Clapham on 08.02.2016

Creative Commons license: CC BY (attribution)