ammonites
Bed No. 8, Fountain Creek, 2 miles southwest of Waterloo (Carboniferous of the United States)

Where: Monroe County, Illinois (40.5° N, 87.8° W: paleocoordinates 10.9° S, 28.9° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Ste. Genevieve Formation, Chesterian (339.4 - 318.1 Ma)

• Early Chesterian (~early Brigantian)

• group of beds-level stratigraphic resolution

Environment/lithology: ooidal, white limestone

• White, arenaceous, oolite limestone with prolific fauna in certain bands

Size class: macrofossils

Reposited in the FMNH

Primary reference: S. Weller. 1916. Description of the Ste. Genevieve limestone fauna from Monroe County, Illinois. Contributions of the Walker Museum, University of Chicago 1:243-265 [P. Wagner/P. Wagner] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 68188: authorized by Pete Wagner, entered by Pete Wagner on 07.01.2007