Jianchang (Cretaceous to of China)

Where: Liaoning, China (40.8° N, 119.8° E: paleocoordinates 43.4° N, 121.8° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

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

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Preservation: adpression, soft parts

Collection methods: quarrying,

Primary reference: X. Xu, X. Zheng, and H. You. 2009. A new feather type in a nonavian theropod and the early evolution of feathers. Proceedings of the National Academy of Sciences 106(3):832-834 [M. Carrano/M. Carrano/J. Alroy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 87417: authorized by Matthew Carrano, entered by Matthew Carrano on 17.03.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Theropoda -
Beipiaosaurus sp. Xu et al. 1999 coelurosaur
STM31-3