Also known as Tachun, Dachung, Dachong

Where: Yunnan, China (25.2° N, 102.1° E: paleocoordinates 34.4° N, 104.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

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

• 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 Hettangian–Sinemurian age for the Zhangjiawa Member and a Hettangian age for the Shawan Member.

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; blue mudstone

Size classes: macrofossils, mesofossils

Collected by M. Bien, C.-C. Young in 1938; reposited in the IVPP

Primary reference: M. N. Bien. 1940. Discovery of Triassic saurischian and primitive mammalian remains at Lufeng, Yunnan. Bulletin of the Geological Society of China 20(3/4):225-234 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49503: authorized by Matthew Carrano, entered by Matthew Carrano on 18.04.2005, edited by Richard Butler

Creative Commons license: CC BY (attribution)