Where: Chiapas, Mexico (17.1° N, 92.7° W: paleocoordinates 17.7° N, 89.0° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Balumtun Sandstone Formation (Rio Concepcion Group), Early/Lower Miocene (23.0 - 16.0 Ma)

• formation-level stratigraphic resolution

Environment/lithology: coastal; lithified sandstone

Size class: macrofossils

Collection methods: peel or thin section,

• IHNFG Specimens.

Primary reference: M. d. C. Perrilliat, F. J. Vega, and M. A. Coutiño. 2010. Miocene mollusks from the Simojovel area in Chiapas, southwestern Mexico. Journal of South American Earth Sciences 30:111-119 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 176435: authorized by Pete Wagner, entered by Pete Wagner on 11.02.2016

Creative Commons license: CC BY (attribution)