Where: Thailand (16.7° N, 98.7° E: paleocoordinates 17.2° N, 104.3° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Khun Huai Formation (Hua Fai Group), Early/Lower Toarcian (183.0 - 182.0 Ma)

• Tak zinc mine sequence Level 1: 20m above the base

Environment/lithology: coastal; mudstone

Size class: macrofossils

Primary reference: T. Kozai, F. Hirsch, K. Ishida and A. Meesook. 2006. Faunal affinity of Toarcian-Aalenian (Early Jurassic) bivalves from Mae Sot and Umphang (Tak Province), Northwestern Thailand. Geosciences Journal 10(3):205-215 [W. Kiessling/M. Nimke]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 87468: authorized by Wolfgang Kiessling, entered by Madeleine Nimke on 18.03.2009

Creative Commons license: CC BY (attribution)