Where: Missouri (38.2° N, 90.7° W: paleocoordinates 23.8° S, 80.5° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Symphysurina woosteri trilobite zone, Van Buren Member (Gasconade Formation), Gasconadian (485.4 - 477.7 Ma)
• Upper beds of informal lower member. PJW: This probably is what others call the Van Buren.
• group of beds-level stratigraphic resolution
Environment/lithology: dolomite
Size classes: macrofossils, mesofossils
Preservation: cast, replaced with silica
Reposited in the USNM
Primary reference: J., J.r. Pojeta, J. F. Taylor, and G. Darrough. 2005. Matthevia (Polyplacophora) invades the Ordovician: the first reported post-Cambrian occurrence. Journal of Paleontology 79(5):1021-1027 [P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 98348: authorized by Pete Wagner, entered by Pete Wagner on 02.10.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Polyplacophora | |
Matthevia cf. walcotti Runnegar et al. 1979 chiton |