Where: Yunnan, China (24.2° N, 102.4° E: paleocoordinates 33.4° N, 105.1° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Shawan Member (Lufeng Formation), Hettangian (201.3 - 199.3 Ma)

• 200 m below Dull Purplish Beds with prosauropods at same site; site in lower part of Lower Lufeng Fm.

•The Lufeng Formation has been divided into lower dark/dull purple beds (= Shawan Member) and upper dark/deep red beds (= Zhangjiawa Member). Luo & Wu (1994: In the Shadow of the Dinosaurs, pp. 251–270) argue on the basis of vertebrate biostratigraphy for a probable Sinemurian age for the Zhangjiawa Member and a Hettangian age for the Shawan Member.

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; marl

Size class: macrofossils

Collected by X. Zhao in 1971; reposited in the IVPP

Collection methods: quarrying, mechanical,

Primary reference: X. Zhao and X. Xu. 1998. The oldest coelurosaurian. Nature 394:234-235 [M. Carrano/M. Carrano/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 51909: authorized by Matthew Carrano, entered by Matthew Carrano on 30.06.2005

Creative Commons license: CC BY (attribution)