Where: Dallas County, Missouri (37.6° N, 93.1° W: paleocoordinates 22.6° S, 79.5° W)

• coordinate based on nearby landmark

When: Acodus deltatus - Oneotodus costatus conodont zone, Jefferson City Formation, Jeffersonian (485.4 - 470.0 Ma)

Environment/lithology: marine; limestone

Size class: macrofossils

Preservation: original aragonite, replaced with calcite

Reposited in the USNM

Primary reference: J. Pojeta and B. Runnegar. 1976. The paleontology of rostroconch mollusks and the early history of the phylum Mollusca. United States Geological Survey Professional Paper 968:1-88 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 100329: authorized by Pete Wagner, entered by Pete Wagner on 08.12.2010

Creative Commons license: CC BY (attribution)