Also known as Yimenosaurus type

Where: Yunnan, China (24.4° N, 102.5° E: paleocoordinates 33.6° N, 105.2° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Fengjiahe Formation, Hettangian (201.3 - 199.3 Ma)

• equivalent to Lower Lufeng, Shawan Member

•

•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; silty mudstone

Size class: macrofossils

Collected by Zhang in 1987

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

Primary reference: Z. Bai, J. Yang, and G. Wang. 1990. [Yimenosaurus, a new genus of Prosauropoda from Yimen County, Yunnan province]. Yuxiwenbo (Yuxi Culture and Scholarship) 1:14-23 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 56155: authorized by Matthew Carrano, entered by Matthew Carrano on 14.11.2005

Creative Commons license: CC BY (attribution)