Where: Liaoning, China (41.6° N, 120.9° E: paleocoordinates 44.3° N, 122.8° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

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

• Lower part of Yixian Formation

• bed-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; fine-grained sandstone

Size class: macrofossils

Reposited in the IVPP

Collection methods: quarrying, surface (in situ), mechanical,

Primary reference: X. Xu, M. A. Norell, X. Kuang, X. Wang, Q. Zhao and C. Jin. 2004. Basal tyrannosauroids from China and evidence for protofeathers in tyrannosauroids. Nature 431:680-684 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 55709: authorized by Matthew Carrano, entered by Kaitlin Maguire on 03.11.2005

Creative Commons license: CC BY (attribution)