M. S. M. 106.4. Road south of Dawt,180’ above North Fork White River (Ordovician of the United States)

Where: Ozark County, Missouri (36.6° N, 92.3° W: paleocoordinates 23.6° S, 80.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• basal Arengian half

• formation-level stratigraphic resolution

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

• Massive to thin-bedded, white to buff to gray, fine grained argillaceous to coarsely crystalline 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 56507: authorized by Pete Wagner, entered by Pete Wagner on 20.11.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Euomphalina - Raphistomatidae
Orospira conica n. sp.
Orospira conica n. sp. Cullison 1944 snail