Where: Liaoning, China (41.6° N, 120.8° E: paleocoordinates 44.2° N, 122.7° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Jianshangou Member (Yixian Formation), Late/Upper Barremian to Late/Upper Barremian (130.0 - 122.5 Ma)

• "Jingshangou Bed" in lower part of formation

•"age of 129.7 ± 0.5 Ma for a basaltic lava from the bottom of the Yixian Formation and an age of 122.1 ± 0.3 Ma for a tuff from the lowermost part of the overlying Jiufotang Formation" (Chang et al. 2009)

• bed-level stratigraphic resolution

Environment/lithology: lacustrine; lithified shale

Size class: macrofossils

Preservation: adpression, soft parts

Reposited in the IVPP

Primary reference: L.-H. Hou, L. D. Martin, Z.-H. Zhou and A. Feduccia. 1999. Archaeopteryx to opposite birds – missing link from the Mesozoic of China. Vertebrata PalAsiatica 37(2):88-95 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 79522: authorized by Matthew Carrano, entered by Matthew Carrano on 11.03.2008, edited by John Alroy and Matthew Clapham

Creative Commons license: CC BY (attribution)