Where: Jefferson County, Missouri (38.2° N, 90.6° W: paleocoordinates 24.1° S, 77.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Rich Fountain Formation, Jeffersonian (485.4 - 470.0 Ma)

• Lower Beds

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, fine-grained, white, argillaceous, cherty/siliceous dolomite

Size class: macrofossils

Primary reference: J. S. Cullison. 1944. The stratigraphy of some Lower Ordovician formations of the Ozark uplift. University of Missouri School of Mines and Metallurgy Technical Series Bulletin 15(2):1-112 [P. Wagner/P. Wagner]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 56505: authorized by Pete Wagner, entered by Pete Wagner on 20.11.2005

Creative Commons license: CC BY (attribution)