Where: Brazil (26.2° S, 51.0° W: paleocoordinates 44.1° S, 22.0° W)

• coordinate based on nearby landmark

• basin-level geographic resolution

When: Serrinha Member (Rio do Rasto Formation), Wuchiapingian (259.0 - 254.0 Ma)

• The type of preservation and lithology of the internal molds seem to be similar to that of bivalve-rich horizons found in the basal portion of Serrinha Member.

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; lithified, gray mudstone

Size class: macrofossils

Preservation: mold/impression, replaced with silica

Collection methods: Repository: Scientific Collection of the Institute of Geosciences, University of São Paulo, São Paulo

Primary reference: L. E. Anelli, M. G. Simões, and J. M. David. 2010. A new Permian bivalve (Megadesmidae, Plesiocyprellinae) from the Serrinha Member, Rio do Rasto Formation, Paraná basin, Brazil. Revista do Instituto de Geociências - USP 10(2):13-21 [M. Clapham/M. Clapham/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 132148: authorized by Matthew Clapham, entered by Matthew Clapham on 08.08.2012

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