Where: Shannon County, Missouri (37.9° N, 92.8° W: paleocoordinates 21.3° S, 86.8° W)

• outcrop-level geographic resolution

When: Missisquoia trilobite zone, Eminence Formation, Trempealeauan (492.5 - 485.4 Ma)

• Given as Lower Chert of the Gasconade. However, Missisquoia trilobite zone is the top of the underlying Eminence

• formation-level stratigraphic resolution

Environment/lithology: dolomite

Size classes: macrofossils, mesofossils

Preservation: replaced with silica

Collected by E.O. Ulrich & H.E. Dickhaut in 20/09/1905; 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 98340: authorized by Pete Wagner, entered by Pete Wagner on 01.10.2010

Creative Commons license: CC BY (attribution)