Where: Pulaski County, Missouri (37.9° N, 92.2° W: paleocoordinates 22.8° S, 81.4° W)

• outcrop-level geographic resolution

When: Pachendoceras zone, Gasconade Formation, Tremadoc (486.5 - 477.7 Ma)

• The Van Buren Formation (Bridge 1930) is now referred to in an interval sense with the Van Buren fauna comprising a zone in the lowerpart of the Gasconade Formation. The chert in which the fossils occur may or may not be in place stratigraphically. So, a rating of "A" through "F" indicates stratigraphic reliability with "A" = no question to stratigraphic position of horizon and "F" = residual material of different ages. Reliability Index = A

• formation-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithology not reported

Size class: macrofossils

Preservation: original calcite, replaced with silica

Collection methods: Taxonomic list does not include stromatolites in which specimens were found.

Primary reference: B.L. Stinchcomb and N.A. Angeli. 2002. New Cambrian and Lower Ordovician monoplacophorans from the Ozark Uplift, Missouri. Journal of Paleontology 76(6):965-974 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 8942: authorized by Mark Patzkowsky, entered by Phil Borkow on 07.09.2000, edited by Pete Wagner

Creative Commons license: CC BY (attribution)