Where: Iowa (43.3° N, 92.8° W: paleocoordinates 29.0° S, 37.3° W)

• coordinate based on political unit

• basin-level geographic resolution

When: Nora Member (Shell Rock Formation), Frasnian (382.7 - 372.2 Ma)

• Within Strophodonta cicatricosa zone. Shell Rock as a whole is early-middle Frasnian.

• member-level stratigraphic resolution

Environment/lithology: marine; shelly/skeletal, argillaceous lime mudstone and reef rocks

Collection methods: Fauna of the Shell Rock not reported here include mollusks, corals, stromatoporoids, and echinoderms. These elements usually dominate the assemblages.

Primary reference: J. Day. 1988. The brachiopod succession of the Late Givetian-Frasnian of Iowa. In N. J. McMillan, A. F. Embry, and D. J. Glass (eds.), Devonian of the World, Volume III. Canadian Society of Petroleum Geologists. Calgary, Alberta, Canada 303-325 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 35495: authorized by Michael Foote, entered by Michael Foote on 17.12.2003

Creative Commons license: CC BY (attribution)