Where: Nei Mongol, China (41.3° N, 119.2° E: paleocoordinates 42.9° N, 122.8° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Daohugou Formation, Callovian to Callovian (166.1 - 157.3 Ma)

• The age of the Daohugou fauna has been controversial. Liu et al. (2012) obtained U-Pb shrimp ages of 160.5 and 161.0 Myr on ash beds associated with fossils of the Daohugou fauna, suggesting a Callovian-Oxfordian age.

• group of beds-level stratigraphic resolution

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

Size classes: macrofossils, mesofossils

Preservation: mold/impression, adpression

Reposited in the NIGPAS

Collection methods: bulk, quarrying, mechanical

Primary reference: D. Y. Huang, A. Nel, C. Y. Cai, Q. B. Lin, and M. S. Engel. 2013. Amphibious flies and paedomorphism in the Jurassic period. Nature 495:94-97 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 140015: authorized by Matthew Clapham, entered by Matthew Clapham on 27.02.2013

Creative Commons license: CC BY (attribution)