Also known as Yujingzi Basin

Where: Gansu, China (40.5° N, 98.1° E: paleocoordinates 40.0° N, 98.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Upper Member (Xiagou Formation), Aptian (125.0 - 113.0 Ma)

• from near base of Early Cretaceous series in basin

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; gray mudstone

Size class: macrofossils

Collection methods: surface (in situ), mechanical,

Primary reference: D. Li, M. A. Norell, K.-Q. Gao, N. D. Smith, and P. J. Makovicky. 2009. A longirostrine tyrannosauroid from the Early Cretaceous of China. Proceedings of the Royal Society B: Biological Sciences 277:183–190 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 88840: authorized by Matthew Carrano, entered by Matthew Carrano on 22.04.2009

Creative Commons license: CC BY (attribution)