Where: Washington County, Missouri (37.9° N, 91.1° W: paleocoordinates 22.3° S, 87.5° W)

• outcrop-level geographic resolution

When: Rasettia magna trilobite zone, Eminence Formation, Trempealeauan (501.0 - 488.3 Ma)

• formation-level stratigraphic resolution

Environment/lithology: dolomite

Size class: macrofossils

Preservation: cast, replaced with silica

Reposited in the USNM

Primary reference: J., J.r. Pojeta, M. J. Vendrasco, and G. Darrough. 2010. Upper Cambrian chitons (Mollusca, Polyplacophora) from Missouri, USA. Bulletins of American Paleontology (379)1-182 [P. Wagner/P. Wagner/P. Wagner] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 98339: authorized by Pete Wagner, entered by Pete Wagner on 01.10.2010