Where: Thailand (15.3° N, 100.4° E: paleocoordinates 28.1° S, 96.5° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Tak Fa Formation, Wordian (266.9 - 264.3 Ma)

• Yanagida (1964, 1988) reported the presence of the fusulinid Verbeekina verbeeki. However, Fontaine et al. (1994) suggested that the Tak Fa formation has a late Middle Permian (Murghabian) age based on bryozoans, brachiopods and the coral fauna. Verbeekina verbeeki Suggests a Wordian age.

• bed-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, shelly/skeletal, gray packstone

Size class: macrofossils

Preservation: replaced with silica

Reposited in the BSP

Collection methods: chemical

Primary reference: C. Ketwetsuriya, A. Nützel, and P. Kanjanapayont. 2016. Permian gastropods from the Tak Fa Limestone, Nakhon Sawan, northern Thailand. Bulletin of Geosciences 91:481-513 [M. Clapham/M. Clapham/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 181783: authorized by Matthew Clapham, entered by Matthew Clapham on 02.10.2016

Creative Commons license: CC BY (attribution)