ammonites
Sega, Lanashan Fm, Gongjiao County (Triassic of China)

Where: Xizang, China (31.2° N, 97.9° E: paleocoordinates 27.4° N, 77.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Lanashan Formation, Norian (221.5 - 205.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

Size class: macrofossils

Primary reference: G. R. Xu. 1978. Triassic Brachiopoda. Palaeontological Atlas of Southwest China - Sichuan Volume 2:267-314 [M. Clapham/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 123654: authorized by Matthew Clapham, entered by Matthew Clapham on 26.01.2012

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)